I have had a few gas ones the last one being the hi gear one from go outdoors and this is probably the worst one we have had.Deffinetly wouldnt use one in a tent.
In windy weather they struggle when used outside.
this season i bought an electric hot plate (£12 off ebay bargain) but I tend to use it outside on a cooking stand as they do get very hot and stay hot for ages when switched off, and obviously dont use it outside if its raining. but we caravan so can put it in the awning.
Aldi or Lidls (not sure which one) have an induction one on sale for about £40 plus the new pans if you havent got any to suit. these are safer as they dont actualley heat up.
It depends on your setup, ei. how big is you tent, will you use it on a stand, do you have kiddies etc