I bought mine because it was cheap and didn't really think i use it all too much. I hardly ever used my oven ever since. It's nothing special per se, but it uses less energy and everything goes way faster, because you don't have to heat up a really big box for a piece of bread.

I thought they were dumb for the longest time, but I only have a conventional oven. Some stuff you want a convection oven for. It's definitely a WAY cheaper alternative than buying a new oven that has both features, that's for sure. Definitely need to adjust to the difference for temperature and time though, I've made that mistake before