Well, only you can know really. Some people have typically perfect circumstances to say yeah, the OU is for them, but they still might not get on well.
As you've enjoyed studying wit them so far it defiantly sounds like the OU could be beneficial to you.
I guess it totally depends on how you feel about Travel&Tourism at college and what you'd put into your Open degree (subject wise).
I think Open degrees are most beneficial if you're choosing the modules and subjects to go in a certain direction.