I hope you don't mind that I really don't see much point in responding in kind, though.
Of course Trump was never going to achieve any very impressive result in just one brief summit, so it's not as if he disappointed people's expectations that badly. But for North Korea, having the summit at all and all the attention and praise from Trump for Kim is a very impressive result in itself. However you look at it, it's curious how a man who's been boasting for such a long time about how good a negotiator he is, gave the other side a big win while getting almost literally nothing out of it. The only way that makes sense is if you're very confident that you will get something bigger down the line as a result - but given North Korea's behaviour in the past, that seems dangerously optimistic. We can't help comparing to the Iran deal and Trump's vehement criticism of that - the way he started off the negotiations with North Korea, it's hard to see how he'd get to even as good a deal as Obama and the others got with Iran, never mind a better one.
The military exercises thing - agreed that there are valid arguments for stopping them, I'm not opposed to stopping them as such. And as I said, just because Trump announced this doesn't mean he can't announce the opposite tomorrow, this could be one of the cases where having a reputation for not living up to your word is actually beneficial. But supposing for a minute that he does stick to that announcement, the problem with that is A) he gives up even more leverage for free, and B) he didn't consult South Korea on it first. Neither of those things will matter in the long run if he somehow achieves lasting peace in Korea, that's true - but they don't appear to make that task any easier.