I am happy with it, it is a huge set. I had bought the Italeri 1/35 Schnell boat earlier, and the matching Big ED kit for it, and was pining for the Vosper to match with that. No sooner got the Vosper, and saw rumors of the Griffon set for it, and it moved to the top of the must have list for me.
The whole kit comes in in a box about the size of a vhs tape, and weighs about a pound or so, there must be about 2 dozen separate frets, with extra wire, rod, and resin parts (honestly I opened the pack when it arrived and though "oh crap, what have I done now") at 170 dollars it was not cheap.But with this and the Schnell I plan to take my time with and do the best I can on them. So they will be put aside while I re-hone my modeling skills on less expensive kits first.
So is it worth it, for me yes. For someone else, they would probably be more inclined to add to their regular stash or tool collection, but over the years I amassed a great selection of tools and I have a healthy stash already of about 40 kits. But I splurged on the Schnell and Vosper, as those have that "show stopper" appeal to me.