Kimbra,
First of all, we are all here to support and cheer you on. My wife was diagnosed with a 1.9 cm right side AN in October. We researched our options exhaustively and settled on translab with Drs. Friedman and Schwartz at the House Ear Clinic. Susan had a good outcome.
You will find people here who have had good experiences with microsurgery and radiosurgery. You will also find learned physicans who favor one of the two approaches. Both options are reasonable alternatives. In the very best hands, you have a very good chance of success, but there is a risk of complications either way.
Some other folks have suggested that you contact House for another opinion and I endorse that view. They are phenomonal docs and are extremely humane. Some will say they are pro-surgery. We found them to be data-driven and both Friedman and Schwartz have done radiosurgery. They will give you their opinion, based on research, but they both told us repeatedly that both options are reasonable.
So, before you make your final decision, I would give them a shot.
Good luck and we will be thinking of you.
Fred