I bought this plant on Ebay last year, and went to pick it up (from Waldor Orchids). When I got there, they had both 'Carmela' (2N) and 'Linwood' (4N) in bloom in the sales room, so somehow I ended up with one of each.
This year 'Linwood' shipped blooming (flower spike aborted), but 'Carmela' is giving me a nice showing: