Amazing performance
I remember frequenting a small computer shop which had Atari and Amiga sections. One day they put the new Archimedes on display and my jaw hit the floor when I saw the lander demo. While Zarch eventually appeared on the Amiga & ST (and ZX Spectrum!), at the time it was just incredible to see the raw power on display.
Sadly for Acorn, the power was matched by absurd prices which instantly meant it stood no chance supplanting either the Amiga or ST. It cost over 2x the price of the integrated versions of each of these which meant nobody could afford it. Being Acorn they found sales in the educational sector but I can't help thinking they would have had a lot more success outside of that if the A3000 had been there from the beginning with it's ST520 / A500 style form factor and lower price.
Still I guess someone from Acorn had the last laugh given how ubiquitous ARM processors are these days.