cubase <=>macbook air <=> firewire adaptor <=>fireface 800

Hello, I am looking to see iìf anyone has experience with cubase 7 running on a macbook air having a thunderbolt/firewire converter conected to an RME Fireface 800 sound card.
I am looking at this configuration only for live recordings ,meaning about 16 tracks. Mixing and mastering would be done on another computer. Thanks