My opinion is superfluous because I'm not very partial to (exposed) tourbillon (whirlwind) movements. The concept behind it is sheer engineering genius, devised in 1795 and an attempt to overcome the influences of gravity. To me it doesn't add anything to a watch. Yes, it's a horological 'tour de force' but all to often it becomes a goal and not a means. I wouldn't do it. Waste of money.