Well having been a rep in Tunisia I have lived in a few hotels and thought my reviews might be found helpful by some:
Tour Khalef:
This is my favourite hotel out of the two resorts. It isn't wheelchair friendly at all so take this into account. This hotel in the summer is great for children and has an excellent kids club but you can only join if booked through Thomson. The restaurant has recently been renovated and is very spacious and has great selection and variety. the hotel staff are very helpful and many guests know the staff as they have been coming to the hotel for years and the hotel has always tried to keep the same staff.
entertainment is lively in the summer specially with the kids club, they also have live singing, kareoke and other ents. they have a big sports screen and always play the big matches. if your match isnt showing you can just ask animation and they will set this up for you.
Hotel Salem:
This is such a friendly hotel and has great outdoor facilities, on its ground. the food is amazing the only thing that lets this hotel down is it needs a decorate. the rooms need decorating also, best hotel for entertainment in the evening - great ents team
Hotel Royal Salem:
best hotel for food in my opinion - i have ate in most of them and this is the best they even served bacon at breakfast one morning

very nice reception and lovely spacious rooms, you can also join in the ents in the salem in the evening
Hotel Royal Kenz
This hotel is great if your 40+ it has great ents and the animation team are brilliant, if your a bit younger as i said the animation are good but you will probably be travelling a long way each night to get into sousse and finding something to do.. it has wonderful food and a la cart restaurants and great facilities. There are many many re-occuring guests each year but as I said they are mostly over 50, which is great if your over 50
marhaba club
this hotel is nicely decorated and has nice facilities but im afraid the food and entertainment let it down.
Marhaba beach.
lovely hotel nice facilities, more for the 40+ again i think not really a young persons hotel. nice rooms.