I'm going to try to remain reasonable/tempered:
QB: Very good, potential to be truly great. Probably right around 10th in the league, but can vault up if he picks up where he left off. Capable backup if needed for a short stretch against lesser opponents.
RB: Top notch group in the NFL. There's not a tandem anywhere else I'd rather have.
WR: I'm not as bullish here, but I think they're solid. I feel like Landry and Higgins are the only two guys where you know what you're going to get. DPJ and OBJ are big question marks that could push this group higher if things go well. I'd also like to see Berry add a player to this group, particularly if they make 3 picks today.
TE: I'm actually pretty high on this position group. I think Hooper is better than the board gave him credit for last year, albeit overpaid. Njoku is solid, and I'm a big believer in Harrison Bryant going forward.
OL: Another top notch group in the NFL. For my money, the best, and Wills should look significantly better with a legitimate offseason and training camp coming into year 2.
Interior DL: Again, question marks. I've been critical of moving on from Richardson, and would feel much better if he's brought back. Elliot and Billings could both be legit contributors, but I haven't seen it yet.
EDGE: I'm actually a believer here. We know Myles is as good as anyone, but I think Takk and Clowney will look really good playing alongside him. Living in Houston, I've seen just how truly elite Clowney is against the run, and the Browns need that.
LB: There's not much here, but that's also by design. If Phillips develops, I think we'll feel pretty strong with this group. Walker will be decent, but probably not spectacular. Man, if there were ever a world where the Browns could come up for JOK...
CB: Only question mark for me is health. If healthy, they've got 3 studs ready to go. Teams will struggle to throw on each of them (Ward, Horn, Newsome) with that rush bearing down. If Greedy gives the team anything at all, it's pure gravy.
S: I'm biased because this is my favorite position in football, but I'm of the belief that the Browns are fucking loaded here, with the opportunity to even pick up one more with a value pick this weekend. Johnson is a stud, Harrison looked good despite the challenges of learning on the fly last year, and I looooove me some Grant Delpit. This group absolutely killed the Browns last year, and this year, I think it will be huge strength.
This roster should be as close to a surefire playoff berth as you can get, with plenty of potential to go as far as anyone else...