Omnisphere is my go to synth.
Blue II is now my 2nd runner up.
high quality base samples to use in the synth engine. the x-y pad is just inspiring how you can get stuff that is out there but so usable.
the synth engine and programming, dials and settings are easy to understand and everything is laid out easy to find or figure out. The ARP is easy to understand.
I am not a programmer - preset user mostly. Blue II is fun to experiment and play with settings.
Blue II is WAY WAY deeper than Omnisphere. I like Blue II as a complement to Omnisphere.
Like Omnisphere you cannot load your own samples in Blue II. I don't really find that a problem, if I need to load a sample as a base for a sound I use Alchemy.
JRRShop with group coupon Blue II is $150.26 AudioDeluxe.com has Blue II for $151.99. Probably a drop in price for black Friday / xmas sales.