Transferring away from Tucows/OpenSRS is easy; I would say that they are actually the most transfer-friendly registrar. You don't need an OpenSRS account: just initiate a transfer and they'll send a verification e-mail to the seller for acknowledgement. Everything should be done in a few days' time (3-5 days at the most). Simple but secure.
I just did one last week:
- initiated a transfer at GoDaddy on Oct 9 at 1.49 PM Eastern Time
- received Tucows' e-mail on Oct 10 at 2.13 PM (and acknowledged it on the same day)
- informed by GoDaddy on Oct 11 at 7.08 AM that the transfer was completed