I have a Nova and a GMajor 2, plus a box full of old stomp boxes. With the Nova, I found that the delay and reverb are good, it's transparent, but everything else is subpar IMO. I don't care for the switching, it's designed to have one bank of effects that you turn on and off like stomp boxes. I have the pedal that allows you to change, but it's so poorly designed that half the time you don't end up with the bank that you wanted.
The GMajor is better, the same delay/reverb, but the functionality is so much better.
Individual pedals sound way better when it comes to modulation: chorus, phaser, flanger, rotary, etc...Can the audience tell, I don't know, but I can hear it.