I think it is promising; however, TUDCA is frankly underdosed in most supplements. Best liver effects are seen in GRAM dosages; especially acutely where there is a significant dose-response relationship (and estimated to only begin efficacy at greater than 11mg/kg or - for ease - the average 220 lb bodybuilder or 100 kg for ease needs about 1.1 grams acutely) for hepatobiliary disease like cholestatic pictures of C17-alpha-alkylated PH/PS/DS/AAS.
From a chronic perspective (where some people take orals - defined as probably greater than 8-12 weeks),
A 2 gram per day (in two divided 1gram doses) trial was just concluded this month...http://clinicaltrials.gov/ct2/show/NCT00877604
Why? Because smaller doses were simply ineffective.
So - if not cost-prohibitory to you...then why not? But I would make certain that most on this board are getting anywhere from 1-2 grams per day orally if you chose to embark upon this as your hepatoprotectant of choice.