If you want to know more about the advantage of using the beginner TIG welder, here are the good things you can get from it.

It uses non-consumable electrodes. Unlike with MIG which you have to replace the electrode spool or need to change the wire electrode when dealing with different metals, you only use one type of tungsten electrode on a certain type of metal continuously thus reducing your downtime in production.
Flux is already incorporated on the tungsten electrode which produces no slags but only refined welding results so sometimes the finishing process becomes unnecessary.
Tungsten melts easily and smoothly and can penetrate better between joints of metals so there is always a strong bond between welded metals.
Versatile. Even with a beginner tig welder, this won’t slack when it comes to welding non-ferrous and ferrous metals and can be used with or without filler metals.
Produces less spark and flames with a small heat zone.
Best choice for welding non-corrosive and ductile joints.
Offers an option for using DC and AC currents when welding aluminum and ally. 
The only downside that we see about TIG welding is that it’s a time-consuming process because it requires careful and slow pace for the filler to completely penetrate the joints. Another thing is its incapability to weld thicker metal sheets. So in simpler words, TIG welding is best for filling up cracks, for repairs and for fusing thin metals only. But in terms of cost, you don’t have to put up a high initial cost especially with the best tig welder for beginners.