As one old fat guy to another, I would really advise finding a way to try them before buying. Snowshoeing can be VERY HARD WORK. If the snow is deep and soft, it can be very difficult. After you have a path, going over the next time isn’t bad. Watch very carefully that you don’t catch the front tip because if you do, you will be on your knees or face and it can be very difficult to get up once you fall down in deep snow.
I once was in snow so soft and deep south of Mille Lacs Lake that I went into my hips snowshoe and all. I had a terrible time and had to release the bindings and walk out carrying the snowshoes. It was just impossible. This wet, dense snow we got last time around should be ideal for snowshoeing.
The advice on slopes is spot on. Make sure you have cleats. Good thing about snowshoes is that unlike “cross country” skis, you really can go cross country on snowshoes.
If your looking to lose some weight, just get a pair and snowshoe everyday for the next 90 days and you will be much lighter and in much better shape.