Generally we found the NH Parque to be an excellent hotel.
The location is ideal set right in the heart of old town Havanna and many of the most interesting sites are within easy walking distance. Always remember Cuba is very hot and humid and even walking short distances can be very tiring. The Capitol building - a copy of the White House - is only mentioned briefly in some guide books but is well worth a visit and all the Hemingway haunts and the real Cuba is literally right on your doorstep.
The hotel has an impressive and air conditioned lobby. The rooms are large and with good facilities. As well as a bath there is an impressive power shower and the king size beds can fit at least eight - not that we tried.
There is a good swimming pool on the roof with stunning views over Havanna.
Breakfast is impressive although unusual by western standards. Sprouts, carrots and other vegetables were available. Good advice is to choose carefully. The omeletes were always a safe treat and the service was generally excellent. In fact the management and the staff were always helpful and on the ball - they even read this web site and respond - which is a good example of caring and trying to do their best.
I would avoid the restaurant in the evening. Although the menu looks inviting we were diappointed and it seems expensive. The food in the lobby and on the rooftop restaurant were better value for money.
Also remember the extras can push up your bill. The four of us - two adults and two chidren stayed for four nights and the total extras were about £300 -and we were just having the drinks and the occassional snack. Remember when you return to the hotel, it is so hot the first inclination is to order cool drinks - it soon mounts up !
But generally this is a top class hotel which try hards with willing staff and knows exactly what it is doing. Also remember Cuba is a poor but very friendly country. Expect to be hassled for money although not in a threatening way. Security is everywhere with at least three staff in the lobby at any one time.
But great hotel, great place and lovely people