I've stayed here a few times when I'm working in Portsmouth.
The owners are very friendly and helpful and will give you a quick guided tour of the hotel and all it's amenities, which include the full use of the games room (table tennis, pool, air hockey, pac man, i-pad juke box, board games and large kitchen area).
Parking is in a council car park right next to the hotel. A reduced rate is available from the hotel if you ask.
The rooms are spot on and very comfortable, i think they all have a small kitchen area with a fridge, toaster, kettle, microwave and sink.
It's literally 1 min walk into the high street with some great looking classy restaurants and bars.
I would highly recommend this hotel and would have no hesitation in staying here with my family if we were in the area.
P.s no height restrictions on the car park