Harborside is an up-market timeshare development. We have owned there for 15 years and are always happy with the quality of the units and the friendliness of the staff. It is pricey - no question; but the quality of the experience, particularly with all the amenities of Atlantis to hand.
The one tip is to get your groceries beforehand. The Atlantis restaurants are exorbitantly expensive as have adopted the expedient of not showing prices on the display menus outside the restaurants - a trap for the unwary.
Wi-fi is over $20.00 a day - a cheap note in an expensive resort.