I had the opportunity to ride an Izip Zuma rental electric bike and it was a great experience. The bike was very comfortable, fast and the battery lasted for a long time! The bike came with a nice helmet, lock and a small pannier bag. I recommend you rent an ebike, it is really fun!
The Izip Store rental bikes are much better than the bikes you will find at the beach bike path.
The store is really nice and well organized. They have really cool stuff!