Fairly reasonably priced seats as they should be. Of course, we were at a Mets/Marlins game so it didn't quiet meet the demand or Opening Day or the Subway Series.
The Promenade reserved seats obviously aren't as good as the promenade box seats but this is where you're going to encounter all of the true Mets fans.
I would be extremely careful with sitting in the first few rows of any seat on the top tier, the plexiglass, railing and walkways often act as obstructions to fans in those rows. But we were in row 9 and could see the field just fine.

The stairs weren't too steep but then again, to the top is probably only 16 rows. I wish I could say that there isn't a bad seat at Citi Field but that just isn't true.
If you get a chance to eat at 'Sausage Premio' while at Citi Field, they have a great sweet Italian sausage.