In most cases TTIP raised the level of consumer protection to the highest on whatever side of the pond was already best (for example Americans see European chicken as raised in shot basically do our chicken farmers will have to up the game (assuming battery hens is something we think is a high standard anyway)
As for beef, Germans think the US do beef like we do chickens. And so there will be a cost to the US cattle industry.
But consumers win
Are there parts of TTIP that are frankly dumb and will be damaging for years? Yes. Would that have been fixed by an open process. Meh.
So if we the people don't like this, then we the people need to write our MPs and congres people and say "start a new WTO round and don't stop till you get something good - keep it open and don't let people like trump comment on it at all"