It's a decent speaker. It's quite efficient, with smooth midrange and treble. Bass is pretty good as well, but I always had the impression it was not tuned quite right. I personally liked it better than the TOTL SP89, but I preferred the contemporary Modus Music 1.6 and Emerald 97 more.
There were a couple versions made, and as a rule, the earlier ones are the better ones. The "True Blue" version was not very good at all, I thought. It is easy to identify this one, as the woofer cone is blue.
The earlier ones can also be coaxed to get a better sound. First, spread the dampening material out over the walls. For some reason, they usually just rolled it up and dropped it in the bottom. I cannot remember if the 87 had a separate enclosure for the mid-bass driver, but if it does, it will certainly need some absorption material in the sub-enclosure.
Ultimately, though, give them a good listen and judge for yourself.