I may be wrong and you should ring S2 to check, but I have a sneaky feeling they may be discontinuing it. The salon size has been out of stock for months. Don't forget the new Creative range is a 3 step system, will probably have a good top and base.
As for your original question. The base dries super duper fast. Top has pretty good dry time and the wear is good. However, I really wasn't keen on the top coat and now just use it for pops. Although I float on a good layer, I found it dried with ever so slight streaks, hard to describe but it didn't have that perfect glass like finish. I was always a Archie cute (lol eta- I meant Seche Vite!! Autocorrect cracks me up) girl, but for long wear, perfect finish and super fast dry time, HK Girl wins for me every single time. I've tried countless top coats in my quest for perfection and nothing has beaten it yet! Sadly not available at a trade price but it's only 85p more than FN and it's 15ml as opposed to 14. Xx