Has anyone here used any of the products from PaveChem?

[bmblandscapes]

I'm looking more towards the cleaners and sealers.
Like I said in another thread, I'm brand new to the forum, currently working for a landscape company in New York. I'm looking to start my own little business this summer, I'm thinking about providing a cleaning/sealing/sanding service on paver patios/driveways/walkways ...anything hardscapes. I've done a lot of it with the company I'm with, usually we just pressure wash and re-sand it. I'm looking into using these products from Pavechem and just wondering what anyone can tell me about them, good/bad. Are they worth using?
I'm especially interested in the Paverprep, Efflorescence cleaner. We have A LOT of Efflorescence problems in this area and if this product works then I'd have to check it out.
thanks!

[Granite]

I've used Paver Prep...not much to say other than works great.