Manuela is, as we would say, 'cheap and cheerful'. Whether it's cheap enough is a personal call. What I will say is that the staff are what makes this place. The reception staff at Maneula go above and beyond. The bar staff (Temple bar - connected with the hotel) are wonderful, and really great fun. Their company and service made all the difference.
The hotel bathrooms are small - regardless of the room you stay in (we've stayed here 3+ times). The air con is extra, but if it's the height of summer you can't do without it. Wifi can be poor in the rooms, but is perfect outside, by the bar and on the beach. The entertainment in the evenings can be noisy (take some earplugs if you're in bed by 9pm). They're obsessed with cuban night, of which there are 3 or 4 each week.
The beach is beautiful, but they've allowed a culture of bagging sun-beds with towels to develop, even if people are barely there all day. This gets annoying - we just politely moved the towels (and got huffed at). In recent years, there are more Turkish tourists than Brits etc. (that suited us). Bitez is fab - throughly recommend the place. It's just a question of deciding what you want from a hotel. Enjoy!