In my experience with many plugins, from those included in amp sims to other, dedicated Spring algorithms, they have all come up short. I could never quite place the reason why a well-captured amp profile didn't sound 'right.' Now, I do. I was researching spring reverb plugins/pedals, and Surfybear came up in something I was reading. I didn't even realize that real, standalone, spring tanks were even made these days! I ordered this after reading a bunch of reviews and watching a few videos. It was backordered, so I had to wait a month or so.
The Surfybear Metal is everything I could've hoped for as far as the tone is concerned. Into my audio interface and Tonex, the Surfybear brings the guitar alive in a way I've never heard a digital emulation do. The effect responds amazingly to dynamics.
The main issue I can see is its size, but as I'm not trying to fit it onto a pedalboard, it is no problem for me.
My Surfeybear Metal is set up in my guitar signal chain to my DAW and whatever 'amp' capture I'm using at a given moment. It can sound very different, depending on the amp it's going into, but it's easy enough to dial in a sweet tone.
There are all kinds of digital reverbs out there, but none of the ones I've heard sound like this.