MK677 was nice when I used it. I bloated a little and might have held a bit of water, but started on the compound pretty dry so it's hard to really gauge.
One thing I can recline to is the hunger statements made about this compound. I've never had such an unimaginably ravenous hunger. It actually felt like a black hole appeared in my stomach and I wasn't able to fill it. Insulin overdoses can make you hypo and really hungry too, but the hunger from MK677 was greater (thankfully little hypoglycemia). It was very uncomfortable and strange to become that hungry... never felt anything like it.