I had a Micro Seiki LC80w back in the 1980s when it was released. It had rave reviews in the UK press, particularly when partnered with an AT1100 tonearm. Sadly I broke the cantilever may years ago, after Micro went bust. Of course, I stupidly threw it away, rather than get it rebuilt (I was a junior doctor/surgical resident at the time and not particularly flush with cash).
My memories (faded with time) are that this was a pretty fine cartridge when compared to the Supex SD900, Dynavector Karat Ruby and Linn Asak. Tonally, it was very balanced and not bright at all. It was less plummy than the Supex and tracked very well.
I would certainly look to buy another, if one came up (if only for old times sake)
Charlie