I don't think this is entirely true. I am on 700mg of Tren A per week (I know for a fact it isn't bunk. Bought tren from multiple sources just to confirm such).
I am more vascular, but not THAT much more. Noticeable, sure, but not to the extent you're speaking of.
I have somewhat of a pump throughout the day, but my muscles are not 'rock hard,' like you speak of. Definitely harder, but nothing insane.
Sides are user dependent. I get absolutely 0 night sweats. In fact, the only side I get on 700mg of Tren is a bit of insomnia and that's it.