I play. PanO, Yu-Jing and Aleph.
Recommend downloading the "starter rules" and other downloads from the miniatures trader which will help.
"Normal" tournament play is 300pts and around 10 models.
Starter sets range from 115 to 170 or so pts (not all are equal).
I recommend starting with three Light Infantry (LI) models per side, basic weapons, no special rules (visors, camo, hacking, etc) and just learning the Orders reserve and ARO (Automatic Reaction Orders) procedures (it's not entirely I-go/U-go, you always get to do stuff in the other player's turn).
It's reasonably balanced, but experience of the players smooths a lot of the bumps over. Some builds could be seen as powerful, but there ARE counters to them - even if it takes you a while to master them (I still haven't mastered several).
I lost a lot of games to start with. Still do. If losing is something that discourages you or your peers, then maybe find another game. The combat is brutal. Guns DO kill people. Close combat CAN kill people, but you have to get past all of the guns first.