The good thing is you can open this library in Kontakt and forget about issues with the Kompakt/Intakt players.
Also, this thing comes with a great selection of drum/percussion loops - you didn't mention that. And honestly, this is the bast part of it IMHO. Those loops are great, I use them a lot and heard many of them in commercial productions / soundtracks .
BTW - I bought this thing years ago on a sale for 99 GBP. Considering the price I paid I would give this 8/10.
Well yes, maybe it's worth 7.5 or so. It's just that I've been recording our own samples and takes for the band, and with the new gear we've got the sound is a lot livelier than Stormdrum. We also have some fancy percussion (berimbao, talking drums, congas, etc.) so usually it's a lot easier to record than use a sampler, unless it's for the unusual things. The drummer can easily cook up his own fancy drum loops though, and all live. We've never used the loops. The one value that we kind of expected was GM drumkits as old drum tracks were written for MIDI channel 10, and Stormdrum just doesn't do it right. But of course you don't get a full GM drumkit as a bonus, only a few drums mapped to GM notes. That's a bit of a bother, it would sure be nice to have a full-res (96/24, or at least 88/24) GM kit.
The issue here is, the samples in Stormdrum have this "recorded ambient" feel and while sometimes they mix just fine, others (in a less crowded mix) the ambience interferes. Maybe it's just getting "spoiled" by the new microphones, etc., but right now we can record better takes for sure than the sample quality in Stormdrum. Still, some things like the taiko and, say, sioux and lion drums we just don't have, so sampled stuff it is.
Our own samples and takes also mix better, they have more of a definition and don't get lost. The age of Stormdrum shows itself. It's from what, 2004? 9 years old, the new gear simply gives better definition. I would never put a Stormdrum loop or instrument forward in a mix, especially solo.