I got V1 of the Wasp VSTi free when ordering the Fruityloops generator version and I'm glad I did. I can now use this in my other hosts. It a very good 2 oscillator synth with effects (parametric eq, delay, reverb, distorsion and phaser)...powered by Smart Electronix and Ultrafunk so they are very good quality as is the synth engine being from image-line!
This synth is really good for loading up and creating nice sounding patches quickly.
This thing had a few bugs to start with but they soon ironed them out with a couple of service releases. It has a nice (Fruityloops style) GUI and is easy to use.
Good for the money....however, between this and RGC Square 1 for the same price - I think I would advice towards Square 1 which is currently going for $35 (about the same price) and has a lot of good features and an upgrade path to Pentagon 1 (which is the daddy) if you find you want more!!