So you are trying to sell your "trust and feedback"? Not that your feedback is going to matter a lot, but this is a quite unethical thing to look for "better" offer in exchange of positive trust and feedback.
I have bought an annual plan (prepaid redemption) from this user few weeks ago. The code is still working fine after weeks and haven't faced any problems yet. He sent me the code first and we did the deal without any escrow.Everything went smooth. I would still recommend using an escrow (for your own good).