Don't know as much about the technicalities as others do, in 6 years with the G2 I had no fault, never ran out of batteries and it always focused where I pointed it. This was a wall a couple meters behind my subject more than once, but I learned it.
The small viewfinder is for real, but it stays as small with any lens from 28 to 90. You can't see outside of the frame and it covers some 95% only, but that's not much of a problem for me, i.E. I got used to it.
It can be used as a P&S and it can be used in full manual, call it rangefinder assisted scale focus if you want to.
With the 35-70 zoom you have a hell of a P&S and with the TLA200 flash a very capable TTL (fill)Flash system as good as that of most SLRs. You can use up the last frames on yesterday evenings roll Fujipress800 in bright daylight without ND filters.
But, you are restricted in your travel choices, you need a place where you can get batteries in case you forgot to bring some. I get some 20-30 36exp rolls out of two batteries, so I have a spare set with every 20 rolls I take with me. Then I have the bad weather kit with external batterieholder which takes AA cells.
And I've never been tempted to visit a place where those where unavailable, at least I didn't stay longer than my supply lasted.
Oh, the noise, yeah, a real problem. I shot at ballet performances where photography was prohibited and didn't get caught, it is slightly quieter than a F22s sonic boom 🙂