I became acutely aware about how much my trials skills were actually lacking- plenty of lines I couldn't do, plenty of general things I couldn't do, So I built this up to sort of restart and learn the skills properly, not just kinda-half learn them so I can say I've done them and just do "cool" stuff instead, even though throughout trials I always envied the people who can seriously move their bike around, not the spinny people.
its been a fair while and the improvements I can physically see is mental. Being brakeless for a long time has definitely helped my overall balance, and every ride I feel improvement. It's great.
The frame is a little old school, but high bb's do not agree with me, it seems.