I have an 8219A... lots of features in a small box. I got this several years ago... An "upgrade" from my eBay Tenma generator. Paid good sum for the GWInstek compared to the eBay-find generator.
I am sorely disappointed in it because the frequency counter jumps all over the place, not so stable.
I guess its better than nothing. It'll do, gets the job done but nothing to brag about. As I said, it's better than nothing.