Aside from the near 2 weeks to receive the TaylorMade SIM2 MAX OS irons, the irons worked great the first time I used them... good enough that I won the 3-man scramble I played in. The irons have the senior-flex shaft which is a change from my old clubs. This took a few swings on the driving range before the tournament to get use to feeling the club head lagging a-bit. Other than that, the clubs hit similar distances to my old clubs. Too bad the golf season ended before I got to try them again.
Overall, I believe they are great clubs.