I am loving MIR SE, but there are a couple of 'features' I could do without.
When I reload my preset, MIR loads the instrument slots and the room reverb files, but does not seem to load the instruments with their samples until I click on one of the instruments to bring up its instruments page (e.g. VI pro) upon when it starts loading the samples.
When I am in the initial screen with nothing loaded and I go to select a preset, I am always prompted to save the 'existing preset' - which of course doesn't really exist. I know it is only another mouse click, but when you use MIR a lot as i am now, it does get a bit tedious.
Otherwise - it is great, apart from having to buy a new audio interface to get 'loopback' (OK that is just an excuse to get a new piece of kit)