NI, realize the issues with respect to loading times, etc. with Bandstand and will provide a fix in the future. When ... who knows. I happen to like the sounds of Bandstand but for me I would like to have some continuity with Kontakt and Bandstand. It would be nice to beable to use instruments from kontakt in Bandstand. NI will take a look at this. In addition, Bandstand may beable to load other GM/GS/XG wavetables in the future. Some fairly good wavetables include SGM180, Papel 2006, etc.
So in closing I hold out hope for a very good quality system from NI. I think they got caught in rapid grow of new products and can't keep up with the required fixes and customer service.
As I have said many times the feeling is amazing to set down and play a great jazz piece with a Bardstown/Steinway Piano, Scarbee Bass, Bardstown Jazz Guitar and dirty keyswitched Sax (VRSound, VSL, etc., Colossus Drums and so on. Oh does this sound so good!!!
By the way, Colossus is a very good GM wavetable plus many other high quality lead voices. Not fast enough to load for midi or style files in a live situation. It may be fast enough to use in a coffee shop, book store or high class night spot jazz session. It just depends on your application.
If you stay with it and use your imagination you will always and I mean always find a better sounding system when compared with any workstation or arranger keyboard.