Don't buy the Kent if you're over 6ft. I have one, and although teh bf and I are very comfortable on it (I'm 5'4"-ish, he's 5'7"-ish) I don't think anyone much taller than us would be. It's very cruiser-like in both geometry and speed, though you can easily tinker with the components to improve it.
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you should learn to embrace change, and mock it's failings every step of the way :p