My architect neighbor says putting pavers on hard concrete (especially half pavers) is like putting lipstick on a pig. Proper use of pavers is to install on solid beds of sand and fine gravel. The Villages version of a veneer type of installation with glued-on edge pavers does not hold up very well after driving two ton cars over them and subjecting them to the side to side pressure from turning tires. My understanding is that additional sand must be added from time to time to prevent shifting and edge chipping, and without periodic sealing they can become subject to mold and oil stains just like ordinary concrete (only harder to clean). Also pick a varied color pattern because you will never be able to replace damaged pavers with exact matches 4 or 5 years later (even assuming your contractor or his supplier is still around).
My suggestion is to tour around the village areas where pavers have been installed 4 or 5 years earlier and see for yourself how they hold up, which type cracks more than others, how much they stain, how the edge pavers are attached, etc. If you see an owner outside, stop and ask about his experience and what ongoing maintenance is really involved, how easy are they to sweep clean of leaves and clippings, whether blowers and heavy rains remove the filler sand, etc. Also, you'll find out which contractors may be best considered for your project. For me, I'd feel alot more comfortable if a contractor has good recomendations AND he's been around for 5 or 6 years making things right for even the "old customers".
Doing your homework well is important, once pavers are installed you are stuck with them for a long time.
My impression of earlier paver jobs is bought cheap, got cheap! So go with quality if you do it.
