Note that this is not using the newer Soyuz 2-1A launcher, which proved a little incompatible with Progress. This is using an older version of the booster.
I'm kind of concerned at the Russian's handwavy "nothing to see here, comrade!" supposed fix to the 2-1A problem. There is something fishy with the "absolutely no details" story. I guess if it's good 'nuf for NASA, though..