Yes I've had the AE sub for a long time. It seems to integrate well with the Q100's, as well as the Q500's.
I find the Q100 system better for tv/movies....it seems clearer. In hindsight I think the Q500's were a bit too much for the size of room, sound/bass wise, which is why I'm actually preferring the Q100 system.
In terms of music through the two Marantz units, the Q100's are pretty impressive for their size. They have a surprisingly deep bass too, although not to the scale the Q500's had.
Initially I stored the Q500's thinking I would use them again when our daughter was a little older or if we moved to a bigger house. I've now sold them (got £400 for them), as I found the Q100's so impressive. Bought the Q100's for £225 too (mint condition/second hand), so they are 'the real deal' as David Dickinson would say!