This is a really sweet Miata! Every Spec Miata has its own character - some are easy to drive, some are fast, some are fun, some feel like they are "constipated", others are stiff, understeer, oversteer, etc, etc.
Phil & Linda's 1.6 is one of the sweetest cars around! I drove it briefly a couple of years ago and came out grinning. I have driven lots of other 1.6s as well as '95s, and '99s. This is definitely up there.
If you are getting into Spec Miata, or if you want a second car, or if 1.6s are competitive in your region (it really depends on the track you're racing them), or if you're looking for a racecar you can run in many classes (ITA, SM, SSM, SM2, STL) then seriously consider it -- can't beat this for the fun-to-money ratio!
I would consider it myself if I didn't already own two Spec Miatas...
Yiannis Tsiounis
2012 NASA Spec Miata Champion, 2012 Pro-IT Spec Miata Champion.