I have tried many car shampoos including Meguiar's Gold Class Car Wash, NXT Car Wash, and some from the professional Mirror Glaze Line of Meguiar's washes such as Hi Tech Wash.Among those products, Gold Class was always my favorite for its solid cleaning ability, but also its ability to leave a final shine and maintain the previous layer of wax on the car.I purchased Ultimate Wash and Wax and got my two wash buckets with Grit Guards ready!I used a fair amount of the product to ensure I had plenty of suds and so that I would be sure to receive any of the wax/protection benefits if indeed they existed.The smell of Ultimate Wash and Wax is lovely.  Furthermore, it looks unlike any wash product I have ever used.  It is rather opaque and thick, so there must be something special and different about the product as Meguiar's suggests.The cleaning ability was solid, if only the slightest bit weaker than Gold Class.  The suds were great, and it was a pleasure working with the pleasant smelling product.I dried the car thoroughly.  The result?  The car was clean and had a subdued sparkle to it.  However, the paint was not very slick and there was not much shine.  Certainly, even using a Quick Detailer leaves more shine afterwards than Ultimate Wash and Wax.  Therefore, I felt the need to follow up Ultimate Wash and Wax with Ultimate Quick Wax.  This restored the shine and slickness to my vehicle, but also questions the legitimacy of using a wash with theoretical protection benefits, if you still need to follow with a wax product.In conclusion, Ultimate Wash & Wax is another fine product from Meguiar's.  It's a pleasure to use and wash your vehicle with, and there are no significant negatives to using the product.  Perhaps others will find the product leaves more protection/wax than I found in my trial.However, like many wash and wax products, the protection provided by any car shampoo/wash seems to be almost non existent.  The wash and wax products usually have a higher price tag, so many will find it more price effective to simply get Meguiar's Gold Class wash and follow it with a Quick Wax for touch up maintenance, or a regular wax for full protection, if you have not waxed in a while.However, for those wanting to try something new or hold onto the hope that there might be some small protection left by a car wash after all, Ultimate Wash and Wax is another solid product from the folks at Meguiar's!