Not stayed at this exact resort, but we did stay at a Rixos Belek a few years back and had a lovely time.
Usual challenges of lots of Russian (demonstrating the rude stereotype) and wide range of themed restaurants, but have to book very early to get a reservation which was annoying, although the food quality was fantastic.
The snack choices were fab, including fridges dotted around across the resort allowing you to help yourself to can/bottle drinks and ice creams, good buffet type restaurants too. Service at the bars varied depending how busy they were, but was a great range of local and imported drink options.
One other thing to note, although it was all inclusive with no tipping, there was some evidence of people tipping to get bumped in attention
Also, worth checking reviews for the condition of the pool areas, as some on the resort we stayed in were a little run down. Ours had a pretty decent choice of waterslides too, which was popular with my DH and DD13
We had a great time and if I came across a good deal, we would definitely stay in a Rixos again.