Hey, I wish i had the ears and expertise/experience to answer that. i would have to say I'm loving them. They have around 60-80 hours on them. I've not had as much listening as I'd like, and i don't run them for long periods to burn them in.
I love the openness and the spacial soundstage. The clarity of the particular instruments and vocal details is breathtaking.
The comparison between models with and without that mid-bass heftiness is not something I can speak to. I wish i could. If some of you sat in my listening room, and i really wish it could happen!!!, I bet there could be some really good insight on my room/system. I don't have a good ear for what my rig is missing. Just what i hear now compared to before.
The subs sound good with the super minis. I LOVE the servo subs. For example, they reveal the type of pedal, and even tuning of the bass drum...Which I had not heard in other subs I have used. Top notch integration, I'm just doing the basics of levels. I feel I have some to learn about sub integration. I will be eventually building stands for the minis. The sub sounds travel up the baffle of the tops. The subs are spiked and they don't wiggle, but I can easily feel them through the tops when they play.
I think it would be fun to hear them with the servo stands that are being planned, but I don't see that happening for me due to funding.
An upgrade for me would have to be quite a big deal, because I love this set up, room treatments to come.
Sorry I can't be more help about specific details about the presence of sound quality.
Ben