I have passed through Xemxija by bus and it didn't appeal to me but then again I only saw the main street through it, however a friend stayed there a couple of years ago and she said it was lovely and had a great time.
Sorry I don't have any info on the hotel, but here is a bit of info about Xemxija -
General Description about Xemxija: Xemxija is a seaside Village and a Yacht Marina is proposed to be developed. Xemxa is on the northern part of the Island just outside St Paul's Bay and a short distance from the holiday town of Bugibba. Only a short drive (approx 10 minutes) to the best beaches in Malta: Golden Bay, Ghajn Tuffieha and Mellieha Bay. The Gozo Ferry Quay is 5km to the north and Valletta the capital city is 19km to the south. On the west side of St Paul's Bay, Xemxija continues the theme, and is also the gateway to the sandy beaches of Golden Bay to the east, and to Mellieha Bay to the North. It is ideally situated for those requiring less hectic surroundings than Bugibba and Qarwa, but still close to all the amenities - in fact, it's got a few of its own, including beach clubs, restaurants and bars, all within walking distance. On the west side of Xemxija lies some of the most fertile valleys in Malta, providing quite a sight during spring.
Hope this helps in some way
ps love the user name