First the bad... Nate Solder has only a 66.0 rating from Pro Football Focus through the first 3 weeks of the season, good for 27th best offensive tackle so far.
The good news... the other free agents from this summer are actually doing worse.
Andre Smith (Cincinnati Bengals): 59.3
Andrew Norwell (Jaguars): 57.4, No. 54 overall offensive guard
Chris Hubbard (Browns): 57.5, No. 55 offensive tackle
Weston Richburg (49ers): 60.4, No. 20 overall center
Justin Pugh (Arizona Cardinals): 51.3, No. 64 overall guard