We've been using Bio-Rad (Biotest) ABO/Rh for a while. It is just fine compared to the others (Ortho/Immucor). We're in the process of setting up our new Tango. Slowly, i am switching everything to them, save the few gel things we'll have to get from Ortho (for now, i assume those will come from Bio-Rad eventually, too). We will be doing gel as back-up. The prices are better and the reps (actually eveyone i have met associated to the company) are wonderful.