none of the low budget ones are amazing for TIG, I've tried Parweld, Weldability, ESAB etc and they all have their drawbacks regarding sensor position and flashing... but even more expensive ones flash sometimes, if you're leaning over a joint or very very low amperages.
I'd buy another ESAB Warrior Tech over any of the others though, they have good headgear and don't fall apart like some cheaper ones do...!
Currently use the Warrior for MIG welding and it's lasting well.
If you can up your budget, the Phantom XL works really well for one of our lads in the shop, he's used it for years. But if you're spending that much, then may as well really treat yourself to a Lincoln 4C or an ESAB Sentinel.