Great to see this thread. Both Hyatts here are on our radar. The Hyatt place has some 3 bedroom villas that would be great for our family but being at the Regency on the beach seems like it would be better. Especially if there is a town within (even a long) walk.
Edited to add: Wow it seems like there is a terrible and long running sanitation problem in Taghazout. Take a look at the tripadvisor forum for Taghazout and you can find
a few threads like this which detail some of the bad experiences (and I think shigella has to rank up there beyond just "bad"). Curious if there are places where the water is safe, or maybe this is just a beach vacation to look at the beach and use the pools at these new hotels.