I have an SBE, two friends have SBE II's and another friend has the Beretta Extrema (2?)....we ALL love them. So, I think it's a matter of personal preference. None of us have ever had any technical issues and we beat on our guns pretty good. We're waterfowlers, and those guns have been underwater in January and iced up and still worked, submerged in pond muck, laid down in muddy fields, etc and never a problem. Both are quality built firearms. Just see what feels best in your hands.
One word of warning, the SBE II's are REALLY light. That feels nice, but comes with a price. You WILL feel the effects of the magnum shells.
"Knowing when to shoot and when to wait is one sign of maturity in a bowhunter. Be patient and pick your aim point carefully." ~ Randy Ulmer
"I suppose it's the way of hunters. We are very odd fellows." ~ Peter Hathaway Capstick