I have bought a used UAD-2 solo just to be able to test the UAD Lexicon 224 plugin. I compared it to all the other UAD reverb plugins and I easily prefered the 224 above any other plugin, I liked it even more than the UAD EMT 140 reverb plugin. You could say I was totally in love with the 224.
However, I was not at all in love with the price for the plugin, so I decided to test a few other native reverbs, maybe I could get something that also sounded very good, but cost a lot less (and I could sell my UAD-2 solo, because I would only keep it if I decided to get the Lexicon 224 plugin).
It's because of Valhalla Room that I decided to not buy the Lexicon 224 plugin! I could make presets with vroom that sounded warm, wide, lush, smooth, and everything in between. It sounds great for small room sounds, but also for gigantic big concert halls.
I sold my UAD-2 and got myself Valhalla Room for only $50,- Best spend $50,- to date!