Hi! It's me, toto!
Psaws are my favorite.
They are great for everything:
1. Great for narrow halls - it is surprising how much goons and tyrants miss (especially in halls like rotcannon).
2. Great for vents - it is also surprising how suicidal dretches are. Especially in the cramped spaces in the cargo boxes in Tremor, or the vents of Karith.
3. Great for alien buildings - everything except the ones on the ceiling (unless you have a jet). OM in ATCS - way too vulnerable.
4. Great for small aliens - fun to run away, and then suddenly turn around, and slice and dice.
5. Great for big alien hordes - you'll deal a load of damage, in addition to alien tks.
6. Great for moving human bases - in like ten seconds.
7. Great for defending human bases - when you're on a turret, the big aliens can't get you are like freebies, while small aliens (like dretches) cannot get to you. Also, when a new building is going up, you can psaw whoever tries to eat it. You can also block tyrants from escape.
8. Great for surprises - around-the-hall ambushes and pretend-ckits!
9. Great for teamwork - large squads of psaws are no match for tyrants and goons (with tk turned off though...).
10. Great for totem poles - crouch with a psaw on a crouching human with a shotgun in a cramped area, and it will be hard for aliens to get to you. Dretches that try to headbite the shotgunner will meet the psaw, and the psaw man is to high to get a headbite. With a shotgun and a psaw, aliens cannot rush them nor inch towards them - rushers will be psawed, and dretches and basis that try to beat the psaw range will be gunned down.
11. Great for players that don't have money - only 100 creds.
Thus, the psaw is one of the most potential weapons ever.