Helen,
You should get lots of replies, but to better answer some of your questions, can you tell us a little bit about the vehicle you'll use to tow the Spree? Make, model, year, engine, and any additional details you can find, like the gear ratio, or what kind of towing package it has? That'll help people determine what your towing experience may be like.
The Spree Connect 260RKS (?) looks to have an unloaded weight of 5180lbs, and a gross (max) weight of 6800lbs. I've never owned one, but the Sprees always seemed to me to be well built for their price.