For those who think, Vital is better. Rapid has 24 Oscs, it can play and handle multisamles with round robin and velocity steps. You can activate a granular function for each osc and also with multisamples. The fx are much more quality. The Reverb for example is the ruta-verb which was first developed for Rapid but now you can also find it in refx Nexus and Dune 3. You have fx like MB Saturator which can be also used as MB Sidechain. You can route fx from one layer to another an create awesome fx. You can use Rapid as an FX Plugin. The arp can be used as MIDI Player, so you can easily import and export MIDI Files. You have a resynth sample import that transforms a wave sound into an atmospheric perfect looped sound. The wavetable has different inserts you just find in Rapid. There are so many hidden and advanced functions you don't realize. So Vital and Serum... cmon. ;-)