That right hook is fuckin deadly
I use him early game to replace Jacob before I get Mordin/ Garrus. Other than that yea, funny character but mostly one dimensional. Has some good dialogue with Garrus, though.
I primarily use Jacob early on (Mordin's recruitment, Garrus' recruitment and Grunt's recruitment), then his loyalty mission, and that's pretty much it. In fact, here's my usual general story mission order/loadout. I'm sure I'm missing something, though:
-Mordin: Jacob/Miranda
-Garrus: Jacob/Mordin
-Jack: Garrus/Miranda
-Grunt: Jacob/Miranda
-Horizon: Grunt/Garrus
-Jacob's Loyalty: Jacob/Jack (horrible team; getting them to survive the YMIR mech at the end and not use any medigel to revive is half the fun!)
-Miranda's Loyalty: Miranda/Garrus
-Tali: Garrus/Mordin
-Talk to Anderson: Tali/Garrus
-Thane: Tali/Grunt
-Samara: Garrus/Miranda
-Collector Ship: Thane/Grunt
-Garrus' Loyalty: Garrus/Thane
-Thane's Loyalty: Garrus/Thane (I do this at the same time I do Garrus' loyalty)
-Jack's Loyalty: Jack/Samara
-Tali's Loyalty: Tali/Garrus
-Grunt's Loyalty: Grunt/Mordin
-Mordin's Loyalty: Grunt/Mordin (I do this at the same time I do Grunt's loyalty)
-Samara's Loyalty: Samara/Jack
-Zaeed's Loyalty: Zaeed/Tali
-Reaper IFF: Tali/Garrus
-Legion Loyalty: Legion/Tali
-Collector Base, the Vents: Tali/Thane, Garrus leads fireteam, Legion through the vents
-Collector Base, the Biotics: Tali/Grunt, Garrus leads fireteam, Samara holds the bubble, Mordin escorts
-Collector Base, the End Run: Tali/Garrus
-LotSB, before recruiting Liara: Tali/Garrus
-LotSB, after recruiting Liara: Tali/Liara
-Overlord: Tali/Garrus
Samara, Legion, Thane, Zaeed, Mordin, Kasumi and Jack and Jacob get to do a lot of side missions.