It's a DIY system, but there are some things that you just can't do yourself. At least I can't do myself. Because of that, I bought it for a great price, and hired a HVAC guy to install it. For me, if I've got to get part of it installed by a pro, I might as well get someone to install it all. My HVAC guy did a great job, and said that it was a very good system. He was also impressed at the cost of it. After using it for a couple of days, I agree. It's very quiet, cools and heats well, and looks great. the remote works well, and I can control it via my smart phone (is there any other kind?) very easily. Also, between the cost of the unit, and the install charges, I saved a bunch of money from the initial estimate from a not my HVAC guy!
I like this phone. It has the size of the other smart phones, is thin as paper. It also has blackberry software, as well as android. And it has a physical keyboard. It really has everything that I need, and it works fine, and the battery life is okay, but they're all the same when all is said and done.