I have a generic from Amazon. It works fine for $10 or whatever I paid for it. Stuff like this I just buy something on amazon that has hundreds of reviews and over 4*, and I've never been disappointed. I also have a Portasol kit that I almost never use, because I'm already done with the generic by the time I'd be able get the Portasol out of the case. Then wait for it to cool and put it away. If you are going to use it almost daily, then I can see getting something nice like a Portasol or Power Probe torch.
As I've said in other threads, I have the DeWalt heat gun and use it a lot more than I ever expected for things like removing labels and heat shrink. People love it or hate it based on their expectations, but it's fantastic for typical sized heat shrink.