I'm a bit of a sucker for the Etha, It's cheaper by about 80 pounds ( £150 cheaper than the Am version)
- Reliability wise they are both workhorse markers.
- The Etha (to me) looks and sounds nicer.
-The Etek is slightly more efficient, I think you get about another 1-1.5 pods off it. But even then, you'll shoot what your (average) pack can hold with an Etha.
-I'd suggest getting yourself to an event and trying them out. It's all well and good people saying what they like about them, but nothing beats actually using them.