Preliminary results are in - Fermenting at ale temps with 2124 results in a very clean beer. I used it in an "Oktoberfest." I used 2 smack packs and made about a 1.5 L starter. OG was 1.052, FG is sitting at 1.010 on the nose. Fermented at about 62-64 for 2 weeks, and in week 3 let the temp rise up to 68. Will bottle it probably Thursday night.
Anyone thinking of trying this, I highly recommend it. Just my 2 cents.