[hluska]

Generally, I would tell you to take the offer. However, in this case, you used a few words that worry me.

Are you suffering from burn out?

If you are, I have some bad news for you. An acquihire likely won't provide a short term fix to your burn out. Instead, going from co-founder to employee will be stressful. You will have a new set of organizational politics to deal with, and you may find yourself plagued with constant "what ifs".

If you do take the acquihire, remember that your start date is an incredibly important part of the negotiation. If you are burned out (and seriously my friend, you sound burned out), take a bit of time off before you start.