All of voxengo's UI's are a little strange to me, but he is one interesting character!

Accoustic mirror takes a HUGE CPU hit, and is very hard to use in realtime, except at the lower quality levels. AFAIK the capture cant deconvolve 96k sweeps. Ive been trying. It can use 96k impulses though
Mirror, to me, still sounds better than any of the other convolution apps I have tried. I dont know why, I figure they should all sound the same, but mirror seems to sound best. Also, mirror's deconvolver, for 48 and 44k sweeps, gives me the least errors

SIR uses a method that introduces latency, but its free, very efficient and easy to use

IR-1 doesnt seem to be able to do the shorter impulses

Pristine space, made by a guy who constantly hangs in the forums to ask what users want, is probably the most ineresting. Its pretty CPU efficient and can load impulses in a row, for what he calls "serial convolution". Its got a LOT of options as well. Cubendo users, who Voxengo's products are mostly aimed at, have a much higher threshold of tolerance for whacky interfaces than we Vegas guys seem to, but as far as the most feature packed, powerful convolution app, I think Pristine Space wins hands down.

My favorite dsp guru, who usually QC's my impulses, doesnt like Voxengo's coding too much, in a few areas, but loves mirror to this day. I'd say the differences are slight, and for realtime performance, Voxengo is the way to go for the gear impulses, SIR for realtime reverbs, and Accoustic mirror for the very best in sparkling crystal clear reverbs, when time is no issue