What you can get from Skype for free is pretty amazing.
We have half a dozen full feature unlimited phone numbers from them (which is a deal in itself), but the regular free features are used day after day, all day long. Conference calls (audio), video calls, file transfers, etc etc
For the free features; it's a no-brainer.

As far as dropped calls go - I drop more cell phone calls up here than skype calls

I do not work here, but the benefits are still awesome
Make your sound your own!