You can call around, but you won't find a more professional, responsive, and honest group of people. I got quotes from several places, and before you decide these guys are more expensive, consider the value of ZERO WORRY. After you sign up, your job is done as the homeowner. They pulled all of the permits, coordinated the installation of new gas meters,, coordinated installation with TECO Gas, and coordinated all county inspections along the way.
Taylor (sales rep) knew his product and was great to work with on the deal. James & Jake (the delivery/installers) did a very quick and professional job with the initial delivery. Lastly, Jose came out, switched everything over to live, went through the start-up process and that is that.
Be VERY careful that the other quotes you get include all permits, connections and inspections. Some companies out there will seem to be thousands less but they don't tell you that YOU have to get the cut-over switch, coordinate new gas meters, pull permits, get multiple inspections, etc. Generator Supercenter does all that - and then they just hand you the keys, I'd book with them again in a heart beat.