If you understand the basic make up of an analog console, you should be able to use the Toft Audio Designs ATB-24 with just a brief introduction as to where everything is. Even if you don't have experience with using a Trident 80B series console, this is fairly easy to understand as there isn't anything out of the ordinary that I picked up. Sure, the cue section will take a little bit of learning, but that's always going to be the case with a new console. The manual is a good thing to have around if you're looking to learn everything about it, but experienced analog console users should be able to learn the basics without one.
The sound of the Toft Audio Designs ATB-24 is definitely true to the Trident 80B console. I've used both, but never side by side, but from memory they sound pretty freakin' close to me. The preamps are nice a pristine but still have a good amount of depth, while the EQ's are in depth and sound clean as well. I just started working at a new studio that has this console, and although we do use it for it's preamps, most of the time we're using it for monitoring.
The Toft Audio Designs ATB-24 is an amazing way to get a classic Trident console for a small portion of the price. It's sleek and the design is great, not to mention it has a great sound and pretty much all of the features you'd want in a modern day analog console. Professional studios looking for a console to compliment their outboard preamps should definitely consider this as it's a legendary sound for a great price.