As for the company as a whole, people are right. They're known for their marketing. They have three different types of clay for God's sake! However, in the end they've been a good balance between performance and price. Remember, most of the products you get from them comes in a 35oz bottle (you supply the sprayer). All the popular products come in a gallon form at a great reduced cost.
Spray-On Car Wash - Excellent. It works better than you might think. Pricey in the bottle form. Try it once, then buy the gallon!
Quick Detailer - It's all I ever use for a QD. It smells great too!
Spray-On Wax - I used this for the first time after doing an ONR wash. It looks great! Just watch any overspray and make sure it gets buffed out.
Paint Clay - It does the job, and you get a good chunk of it.
HD Wheel Cleaner - It does a great job; turns red when in contact with break dust. Certainly cheap when compared to Sonax.
Undercairage Spray - Haven't tried it too much, but not super impressed. It smells like WD-40.
(Regular) Wheel Cleaner - Doesn't do anything a a quick detailer can't do. It's been replaced with Amazing Roll Off.
Rubber Cleaner - It works, but best with a foaming spray head. This makes you use a lot more product. Also replaced with Amazing Roll Off
Finest Mist Sprayer - Ergonomically very nice, but not impressed at all by the spray. It's a 1/16th of a twist difference between a OK spray and a weak stream.
Foaming Sprayer - Same story as above. It only shoots out a little glob of foam, so you have to use a lot of product to make it work.
I have their orbitals, maching polishes, and best in show wax, but haven't gotten around to using them.