The Advance Lightness 2 was regarded as a very advanced harness, being very light and engineered to a high spec. I had my doubts about the airbag and foam safety systems, but I guess we all take our own choices in that regard.
Being a lightweight harness, wear and tear is going to be an issue, as it states on the placar. This one has seen quite a lot of hard use, and there are a couple of small scuffs and patches. Even so, it represents a cheap way into flying a once very expensive harness, and thus is worthy of consideration. I wuld say that you need to be a competent, current and capable pilot before considering this option.
Medium size translates to a pilot height of 165-183cm. Blue and Black. They cost £1245 when new, so let's knock off £1000 and see what happens!