When i read Call That Girl's remote support book, i looked into LMIR, and i was shocked at the price, immediately i looked at the list of others. I decided to use ScreenConnect for my business, the license is cheap in comparison, and they give you a major discount after the year is up to apply to upgrading to the latest version after your one year of upgrades is over.
so far any question i've had for SC they have answered in less than a day, and it has all the features (aside from D7 built in) that i could need.
only downside is you have to host it yourself, however i have not had any issue with that, i added a subdomain to my website, forwarded that to my no-ip dynamic host, and it forwards to a dedicated office desktop, so far no connectivity issues with clients.
solid product, look into it. i havent tried or looked into IHC but it seems to be another highly praised product here.
sorry for the long post!