I find that the Tenryu is either feast or famine. If anyone you are playing knows how to aim, you die in one or two volleys thanks to a citadel that I swear extends a couple feet beyond the the bow and stern. If you run into a gang that can't shoot straight you can rake in the xp and credits.
The Tenryu is rubbish. If anything coughs at you you lose half your modules, especially the rudder, propulsion, or both. The St Louis, given the current shitty meta which is HE/fire spam, wipes the floor with the Tenryu.