I generally liked this product. I loved its being so much smaller and lighter than traditional battery chargers. However, there was a big issue and a variety of small annoyances.The big issue I encountered was that the charger never transitioned to Maintenance mode (trickle-charge). I had used the car in a way that didn't recharge the battery (series of very short trips on a cold night with a passenger that insisted on using the electric seat heater). I could hear the weaker rev'ing of the starter. When I got home, I connected up this charger, but 8 hours later, the status lights indicated normal charging mode, when I would have expected it to have long been in trickle charge. However, the battery seemed to have been fully recharged (from healthy sound from the starter motor).Related to this is the absence of a finer-grained charging status, for example a 3- or 4-element bar. On traditional battery chargers there is a gauge showing the voltage difference between the battery and what the charger is supplying. As the battery charges, the needle on this gauge drops. This lets you know when you are close to charged, or that the battery isn't taking a charge. And when you are initially connecting the clips, it helps confirm that you have a good connection. For example, I know from prior experience with these traditional chargers that there are several bolts on my engine block that would seem to be excellent grounding points, but aren't (insulated by thread-lock glue?). When I experimented by attempting to use these bolts, this charger gave me no indication of this problem -- the status lights were the same as when I connected to a good ground. Consequently you don't get an indication of one of the most common problems using a charger -- an inadequate connection of the clips.The hanging hook is a very useful feature. Unfortunately it seems to be made of a very brittle plastic. While it may be adequate for hanging the charger on a wall, it is grossly inadequate for the pictured use of hanging from the hood latch -- a situation when you are likely to be frazzled and may inadvertently stress the hook. When I encounter features that apparently compromise quality for trivial cost-savings, I always wonder if there are hidden ones critical to the functioning of the device.The product is better than what is pictured. Instead of a cord ending in battery clips, it has theBosch C35AC0 Quick Connect Cable Harness for C3 Battery Charger with Built-in Cable Fuseto which the battery clips are then connected. This harness provides the option -- which I didn't test -- of being left attached to a battery to provide a simpler and surer connection of the charger, and is especially useful for infrequently used batteries that are maintained on trickle charge (for example, boats, classic cars). Also, if the charger is to be used by someone who just can't understand the concept of where to connect the clips, this is an excellent accommodation. If you use the charger with multiple batteries, you might consider getting some/all of them their own harnesses. Additionally, my experience is that this is the part of a charger most likely to be damaged, and it is an advantage that it is easily replaceable.Although the manual is very short, it could be much better organized and laid out. Before you get to the two pages of operating instructions, it has four pages of warnings that should be obvious to almost anyone likely to be using this charger. I know that these are required to be there, but the way they are presented may well cause impatient or easily frustrated people to just stop reading. The big annoyance involves a very nice feature: The cover folds out so you can see a keyed picture of the charger while you are reading the instructions. Unfortunately, the legend for the keys (numbers) is not provided until after those names are being used (in the "Warnings"). And the basic instructions for operating the charger, including turning it to Standby before unplugging, is not in the "Operating Instructions" but part of a long individual "Warning" at the end of the "Warnings" section, and consequently easily to miss.DEFICIENCY: The manual for this product is available only as hardcopy. Because so many of my product manuals are available in electronic form, my "bookshelf" is on my computer and portable devices. This had the advantage of not only having manuals readily available and easily searchable, but it is easy for me to add annotations and bookmarks (I use the free FoxIt Reader as alternatives to Adobe Acrobat as well asNitro PDF Professional V6that is much cheaper than Acrobat, especially during its frequent sales and rebate offers).DEFICIENCY: No registration for this product. In the old days of mail-in registration cards, processing them was often an expense that wasn't worth it. But on-line registration is very inexpensive and something I would think well worth it for notifying customers in case a problem/defect is discovered in this product.What were they thinking?: The manual suggests using the packaging for storage, but that packaging is probably too fragile for anything but infrequent use where you are very careful taking it out and putting it back in: The cover is very thin plastic (reinforce-able or mend-able with normal packaging tape), and the base is a little more substantial. The packaging is closer to what you want to minimize the amount going into the waste stream.========================Advice for purchasers:The manual tells you to cycle the charger into standby mode (blue ring) before unplugging it (but doesn't say whether that is to protect the device or you). I found this to be non-obvious and thus hard to remember. I used my label maker to put this reminder on the charger (but Bosch, it would be nice if you had this on the next version).-- Douglas B. Moran