Hi Axel, the Apollo would definitely be a major step forward from the current interface. I know those can be a boutique, so are you going brand new or used? From my experience the Apollos have a somewhat darker not as high-five, but warm tone than something like RME(very clean and pristine) or The Focusrite Clarett OctoPre. I have those two in my rig, but I have used the Apollo before. Without knowing your budget, but I would recommend RME and if needed an xlr patchbay for extra mics if needed. However, if you are already vested in the UAD ecosystem and need 8 mics out the box then the Apollo would be the option at least until all of UAD goes native. Rme makes an 8 mic version, however the cost of admission to the dance is not for the faint hearted. I hope this helps or at least gave you something to think about.