I think Detailer's Pride makes some great products. The products that I've used and some I still use are as follows:
Gel Wheel & Tire Cleaner: Safe and gentle as P21S's gel wheel cleaner at a much better price-Awsome stuff-I buy it by the gallon.
Glass Cleaner: Average-much like Eiman Fabrik-and store bought glass cleaners-I buy it by the gallon.
Spray Wax with Carnauba: Very good product-similar to Pinnacle's Crystal Mist, Eiman Fabrik's Clear Pearl, and Four Star's Spray Wax-smells great-good QD for the money.
Carpet & Upholstery Cleaner: Very good product-I don't have much to compare it too, but I buy it by the gallon and use it on stains that my 6:1 Woolite mixture won't get out. Smells fruity and smells STRONG. WARNING!!!!!!!!!! DON'T GET IT IN YOUR EYES!!!!!!!!!!!!!!!!!!!
Emeral Tire Gel: Good product-comperable to Pinnacle's tire gel, Wolfgang's tire gel, and Eiman Fabrik's tire gel. Smells good and looks good.
Auto Body Wash: Average product-doesn't smell nice but cleans well and doesn't stip wax.
Overall, Detailer's pride make high quality products. The only product that I tried of their's and didn't like was their glass polish.
Hope this helps!!!