I (we) have done dozens of failing sealer removal projects. here, because of the sun and the UV / UA the water based / acrylic sealers turn an ugly yellowish brown (like dried Elmer's glue) and begin to peel.
I first tried the Arizona Seal on my exposed aggregate at my home 5 years ago. Still looks as good as the day I applied it (2 coats). Very impressive.
I owned and operated a painting company in Chicago for about 10 years. I know painting, and adhesion is priority #1, (proper preparation of the surface) and using the best quality materials is the second most important factor.
Any schmuck can apply a coat of paint or sealer and it will look great. The home owner or property owner will pay the invoice. Important to remember you are placing your companies reputation on the line if/when that coating begins to fail prematurely.
Like any quality product, the W R Meadows products aren't cheap in price, but if your project will remain looking as good as new for 5 years (as my personal experience has been) and your competitors fails in 18 months, the word of mouth business reputation your will receive in return is priceless.
I've done many sealer projects, and provided a written warranty for 3 years with each. I strongly suggest to the customer a recoat is required at 3 years. Did one about a month ago, have 2 more scheduled for follow-up calls in December. The one we did in October looked great, no signs of browning or failure. Spun the project using 25 degree tips, rinsed thoroughly, then returned the following day and applied two coats. Good money !
I am averaging about 18 months on residential sealant. Many factor play into the longevity of sealers...heat, sun, foot traffic and etc. High temps will certainly take the "shine" out of stamped concrete quickly!!