High temperature indoor grill for steaks

Has anybody got experience of cooking steaks on a high temperature indoor grill?

I'm currently looking at purchasing one that heats up to 800C (1472F) but unsure if it will do the job.

I'm looking for a great sear with medium to rare at quick time with hopefully less smoke than my current pan fry steak in tallow.

Are they worth it?

Do they cook a better steak than traditional pan or grill?

Any good high grills to recommend?

Or shall I stick to searing it in the pan or regular grill?

Many thanks