I have a halogen oven, I love it, for €50 I find it a very handy piece of equipment. It is a bit on the big side from a storage point of view but I just keep it on the utility room counter. It wont cook meals for full families but is very handy for small amount, roasts a chicken fine, havent tried beef in it. Cooks oven chips or roast potatoes great, I also make scones in it, needs no preheating and can make 6 scones in approx 15/20 mins start to end.
There are loads of online ads for these things, they all exaggerate, it is not 3 times faster than normal oven, it is faster but not that fast, it browns food great unlike the microwave. They do not wash themselves whatever the ad says and in general other than the scones I don't find they bake particularly well as the heat does not get under the tins properly but in general for the money I find it very useful.