After trying the Tria, and a modified OneTouch that could fit professional needles, I would reccomend you save money for professional laser, and a cab to get you there and back.
I wasted about 2 years being cheap. The tria is painful, and doesn't work on a beard, and the onetouch, well it works, but it is sooooo slow and it is really hard to do it on yourself. You might be able to reduce hair on one side, but you'll end up with scarring and pitting and time=money and it is a huge waste of money.
After giving up on the home-stuff, I went to a pro electrologist, and that was super expensive and not worth it.
I'm a few months into my first professional laser, and it is AWESOME! Super quick, no pain, and great results. I know for sure I got a bad price, but even with the high price, it is much more worth it when you factor in time/money and results.
If you're curious, I'm getting face, neck, and brazilian for ~$4.5k USD I'm guessing it should be closer to $2-3k but oh well :/
I might follow up my laser treatment with some electro, but that's a ways off.