Not What I Expected
No complaints about the staff we dealt with or the hotel as a whole, it just wasn't what we expected or wanted, so we ended up changing hotels. The hotel was wonderful about it and didn't impose any penalties for our early departure.
This is not a 4* resort. The lobby area is heavily staffed with the personnel you'd expect, but in our hotel wing, if you needed anyone (including near the pool) expect to make a phone call from your room.
Water park was not open when we were there, which we expected. The 6 pools that were open are very spread out. So really, there were only 2 available conveniently to us, one which is adults only. And they are in courtyards and get limited sun. 
The athletic facility is so far away, that a golf cart could be called from the hotel, but it wasn't walking distance. I thought I'd try a yoga class, but it was just mentally too much effort to organize.
The rooms are fine, with recent updates. The bathrooms are tiny and not luxurious. But what really bothered me was the exterior of the hotel. Cracks in the stucco. Water stains. Signage that still indicates the "future lobby's" location (clearly long built out) or is broken/missing.
Lastly, the neighborhood wasn't for me. The resort grounds are very nice, but the surrounding area is not tourist-focused nor particularly upscale. The $30 resort fee plus $15 wifi cost made a lot of other hotels comparable in price. And the amenities and level of service surpassed what we found here.
We didn't experience anything bad at the Arizona Grand, but it wasn't what we expected or wanted.