Lupenbill - my tumor was 4.2cm (yes - that's centimeters), so your lesion is significantly smaller than mine was, and I've been getting clear reports (no evidence of disease NED) since it was removed in May of 2015.
The size of the lesion is important, but the Stage and the Grade of the lesion is what really counts and defines your treatment path. For example, the pathology on my lesion was Stage Ta and High-Grade.
In my journey so far, I've found that knowledge is power. The more I understand what I'm dealing with, the better I can communicate with my doctor and help ensure that I am getting the best possible care for my situation.
Here's a site that I found a year ago that helped me better understand some of the basics:
www.auanet.org/education/guidelines/non-muscle-invasive-bladder-cancer.cfm
I hope this helps. Again, feel free to ask questions.
Take care,
Lilyg