We liked Harborside, but it does not have an oven or outdoor grills like Lagunamar does. We had a 3rd floor villa with no view and the balcony is very small. As you know, all the villas at Lagunamar except some lower floors have fabulous views. We cook in the villa a lot and it was difficult with a family of 4 with just a microwave and stove top. The bar service/restaurant service at Lagunamar is fabulous. The waiters are always coming around the pool area especially when it is happy hour, they will take our order in advance so we can have a couple of the happy hour drinks. The pool guys are also fabulous. They will find you a lounge chair (they all have cushions), adjust your towels for you, etc. There was none of that at Harborside. No pool waiters, no lounges with cushions, no pool guys. Just lifeguards. The only lifeguards I ever saw at Lagunamar are at the beach and at the slide. The prices of food/drinks at Harborside is what I would call very expensive. Also everything, and I mean everything food and drink wise at both Harborside and Atlantis has the mandatory 7.5% VAT and 15% gratuity tacked on to it. Adds up quickly.
We will go back to Harborside and adjust our expectations accordingly. However, made a 9 night reservation to go back to Lagunamar yesterday.
The only thing I feel that Harborside has over Lagunamar is the water park at Atlantis. So much to do and so much to choose from. If Lagunamar put in a lazy river, we would be very happy.