One flight might not be a way to measure how good or bad an airline is, but for me and my experience, it would be the last time I fly on board jet airways!
We flew from Abu Dhabi to kuwait, the plane was nearly full, but we flew around 20 minutes early which was a great advantage, the staff were friendly, However for me the disadvantages on this flight outweigh the advantages.
I wanted to upgrade my seat, because I wasn’t really happy with the location and odour in my current seat, however they said you can only upgrade on the counter and not on the plane, most airlines will ask the captain and they will set a price then and there.
The other major major disadvantage was that the AC was so warm it was like just re-circulated air without any cooling which made it even worse to take in, it was hot and I just didn’t feel it was a clean plane overall. I flew in on another low budget airline but the standard was way different it was uncomparable. For me thats it, i had a very bad first impression, one of my friends flew on one of their larger planes to South East Asia, he said their standards were very good and they were very professional, so its up to you eventually.