Thanks for the reply! My installer is really pushing Unilock because of how durable and strong they are but also likes Cambridge. My wife likes the Cambridge color scheme better. Our installer by us seems to be one of the best around and heavily promotes a strong base. I always hear mixed reviews online about sealing. It is definitely worth it?
If you have an authorized Unilock installer, Unilock will include a lifetime warranty on the blocks. It isn't the most valuable of a warranty in the end, labor for replacement isn't included. etc. etc. etc., but Unilock seems to want to stand by their blocks and offer up some kind of warranty. Also, if an authorized contractor installs them, at a minimum, they need to offer a 2 year guarantee on major settling or failures with installation.
Plus, I like the new " Enduracolor" in some of their line of blocks. My existing patio is a Unilock patio (10 yrs old), but did not have that and there is aggregate comiong through and the color is not as uniform anymore. The new Enduracolor is supposed to have the color much deeper in the blocks.
Don't want to sound like a Unilock sales guy here, but there are some good points to going with that brand. I did and like it, not to say other choices are bad. Unilock is not a available nationwide either, but if you have that option, its worth looing at.
For sealing, everyone I have talked to about pavers around the pool have recommended a commercial type sealer, not just something you pick up at the big box stores. Will make the patio last so much longer, and look so much better longer. After all, the pavers are really concrete, and it would probably be recommended to seal that around a pool.