We travelled from England as a package deal, but it's possible to book directly with the hotel. The hotel is graded at 2-star, which we found suprising, given the high level of service and the comfort and cleanliness of the hotel.
Most rooms are twins but there are a small number of triples. All rooms have private facilties (WC, bath/shower)and all rooms have a safety deposit box. All rooms have a small balcony, luckily ours looked over the pool but some look over the road.
The hotel is situated 300m from the beach and there is a footpath which takes you straight there. There are bars, cafes, shops and restaurants close by and it's located about 4km from Hammamet town centre.
Breakfast is continental and not very exciting but fairly standard for this kind of accommodation. There is an a la carte restuarant open in the evenings but we stayed on a bed and breakfast basis so didn't eat there. You can pay for meals individually here if you wish but again the menu isn't that exciting and we prefer to seek out more traditional places to eat whilst on holiday.
There is a reception lounge with TVs, one showing British channels and the other showing Tunisian, Arabic stations. In the evenings, especially at weekends, Tunisian men drink here and the place is quite noisy, but we avoided it -- we hadn't come on holiday to catch up on British TV, as quite a number of British holiday makers seeemed to be doing.
There is a basement disco and occasional entertainment - quizzes, belly dancing displays, etc.
We found Les Citronniers very good value with friendly staff and in an ideal location. I would certainly recommend it for the off-peak season (it was child-free when we were there, which is always a recommendation for me) if you want somewhere to relax and not be expected to join in much.