Pulled the trigger today and booked Saver Premium OS IAH/ORD/VIE in late October. Return AMS-IAH on UA E+. Went to LH site, plugged in the UA confirmaton # and got the LH confirmation number, even though we have nothing to do with LH. Took the LH # and plugged it into OS site and were able to select our seats. Booked
1D and 1G.
Also, got wait listed on IAH to ORD portion of outbound though, on a A319 there are very few FC seats so confidence is not high.
Looking forward to experience the OS J experience.