JasonRS,
Yes, the person the other end can Watch & Learn whilst you work away and no need to worry about ports. It uses it's own encrypted connection as you connect. Once it's Set-Up and that ain't that difficult, it's very easy to use.
Blimey, if my 60yr Old Dad can set it up his end!!!! -- Anyone can.....
I don't know about GoToMyPC cos I've never bothered with it, since LogmeIn is free. the only thing you can't do (On the free version) is drag and drop data, which to be honest even if you could use, wouldn't be that beneficial since it's just the same as emailing really.
It's still doing it over the connection, so no real benefit (Speedwise). IMHO
If you have a spare PC/Laptop you can roadtest at home, dead easy. Up & running in 10mins