This is hands down the most complete synth sound package for the money. I got mine for $30 (an absolute steal) from Big Fish Audio and haven't looked pack.
The user interface is ridiculously easy to use, there is everything laid out in front of you and there are loads of things you can tweak.
The sounds are brilliant, there are very, very few sounds that I would change if I could. The sounds are very rich and enjoyable to play. The legato mode really makes for a brilliant sound for leads and pads. With just about everything covered, and very much so in the bass department, it would be hard to even use more than half of these sounds, there are just so many of them. The quality is all there.
The legato/mono feature is the king of the mountain and there are ADSR and tweaking with filters to create wonderful synth sounds. Everything is there at your fingertips, no need to invoke other filters, the filters that are included are more than enough.
The documentation is good, but only serves as a simple reference for dummies and to list the available presets. It requires no documentation, so I'll give it a 10 anyway.
The number of presets is ridiculously enormous. Every possible bass you could ever want is right there. There could be a few more textures and pads and vocal/choir sounds, but it's still very good for what you get, most musicians would never use all of the sounds, there are too many of them!
Customer support is ok. There is no real need for customer support, the product is so simple to install and use.
This product provides you with a great collection of synth sounds for you to use in your musical scores. There isn't much missing from this collection. There is so much bass in this that it's impossible to use it all. Overall GREAT value for money, this is a key buy and you cannot pass this up. You'll probably get more out of this than with a lot of other commercial synth modules and for much less.
Plugsound is very stable, there has been no crashes as I've used it several times, and have never had any issues.
Overall a brilliant product. This is one sound module that you shouldn't be without. This is a key buy.