Eventually I went for the 2i2 3th gen and: no regrets at all.
I also installed Amplitube 5 and now i'm considering on selling my line 6 amp
Both the interface as the software are top notch. I even think it sounds better than the amp.
So next purchase is a set of good bedroom studio monitors and i'm off.
Here are some samples I recorded in 1 try (so off tempo now and then :-) as a sound demo.
2i2 as interface, Cubase LE as DAW, amplitube as plugin (the only one, no mastering, EQ etc)
https://soundcloud.com/peter-muylaert/mix/s-SzLBSqxHdeW
https://soundcloud.com/peter-muylaer.../s-d1EE0QnEHO2