Hi Adam,
I had treatment at TWH GK Center September 2013. I'm not familiar with the two Dr.s, that you have mentioned. The Acoustic Neuroma Association of Canada (Toronto group) can provide a listing of the most popular and experienced neurosurgeons and otolaryngologists in the city who could offer you a second opinion if you are interested. You can also connect through that group with others who have been treated at TWH.
My experience with the GK Center was a good one. My AN was 2.4cm when zapped and I am waiting now for the results from my one year follow up MRI. I was well cared for, in and out in one day - no major issues post treatment. I have had some problems, but they were to be expected due to post treatment swelling. I did not require steroids and I never needed to take a day off work. Most of the post treatment issues I had are now behind me.
Email me if you would like more specific information about my experience. I am quite pleased so far with the result and for me it was the right decision.
Cathie.