The Jim Thiel era Thiels have a treble that can easily do wonders or go bad. The difference seems to be if you listen to a lot of vinyl and/or use tubes. Then it may be heavenly for you.
If you are all digital with SS gear, avoid it.
Another set of alternatives from the era are the Vandersteens of course.
Of course, ALWAYS listen for yourself. This is just cheap advice given in case you have no ability to listen yourself.
Best,
Erik