My Husband and I visited Atlantis for the first time over Spring Break 2013. We have 2 boys, aged 11 and 14. We traveled with another couple. 7 total people in party. Stayed in the 2 bedroom Lockin. PERFECT! Put adults in the 2 bedrooms, kids took over the smaller living room (pull out couch and a roll away bed), leaving a full kitchen and a large living room free for adult gatherings. Kitchen was great for making breakfast in the room (skip the long lines at the Atlantis Restaurants) with stove and convection oven, full fridge, dish washer,etc. We also cooked a couple dinners in.
Harborside is recently renovated. Our room was clean, updated, had everything we needed. The pool & hot tub area was great -with shuffleboard, ping pong and pool table at poolside. ON site work out room was neat and functional, with basic machines.
Shuttle service to Atlantis was frequent and quick. It is also a nice 10 minute walk, along the marina area, over to Atlantis Aquaventure, pools...