Website and Wikipedia tell you all they need to know. in a nutshell, as mentioned previously, they're an ACMI outfit. They now have 6x A320's as well as 8 B733/B734's and 1x A333.
They seem to have taken a lot of the work left vacant by the demise of Small Planet
https://www.getjet.aero/
https://en.wikipedia.org/wiki/GetJet_Airlines