Let me give a good review then. Mind you, I stayed there in 2014 and things may have changed in 2.5 years but I didn't mind it. Water was fine. A/C worked great.
It's not a new hotel by any means but if you're on a budget and don't care for all the frills or appearance of a nicer hotel, the price point and proximity to DL is fantastic. No elevators to deal with and you can be from door to DL gate in under 10 minutes easily. Given we stayed in our hotel room very little (apart from sleeping and an afternoon break where we went to the pool), I'd stay there again if the price was good. The money we saved at the Anaheim Plaza helped offset the trip big time.