I have just come back from Sousse and the weather was lovely. We had a couple of cooler days and some rain one evening but nothing to complain about for April though it can be a little uncertain at that time of year. The weather can't be guaranteed though I've had fantastic weather in February and March in the past. There were quite a few people in the sea and lots of lovely tans on view. The beach of golden sand doesn't shelve steeply so it is very safe for children. Paragliding is available off the beach at 25 dinars for one and 40 dinars for two and you can take pirate boat trips either from the port at Sousse or PEK. Other boat trips are available from PEK.

I don't know the hotel but you can see reports on Trip Advisor until we get some on HT (I hope you will post one when you get back).