Pons seems to be pretty good with the basics and pretty sure they do more work on Z32's than any other shop around here, but they are not a comprehensive high performance shop like SZ. I have them work on my DD (a V6 Toyota) and their work has been very good, with no major issues. I just would not expect the thoroughness, eye to detail, care, and spot-on troubleshooting as you'd get with folks that do z32 specialty work (and I include among those in Florida Ztuner and Ash but unfortunately none in S Florida).