Flying Vietjet

My wife and I are visiting Vietnam and Thailand in February, and we’re planning to fly from Da Nang to Bangkok. It seems like Vietjet is one of the only airlines offering nonstop flights at a decent price. However, I’ve seen some less-than-great reviews.

I’m not too worried about the comfort level given how short the flight is, but I am concerned about reliability and the possibility of unexpected extra costs.

Does anyone have recent experience with Vietjet? Would you recommend it?