As you know, those preamps are great for almost everything. In my case - I'm recording through it bass DI, vocals, and acoustic guitars. Before it my workhorse was Warm Audio TB-12. Also great unit, but it has little to much saturation of mids, and overall sound is very unusual for my needs, imho. I'm Plan to make a video review soon, compare Pre-73 vs TB-12 vs Daking Mic Pre One.
Pros - great sound and look, for this price range definitely no reason to looking for something else. I'm happy :)
Cons - just two - would be cool to have LED's near each switch to see the current state, sometimes you can forget about them. And when phantom power is on, and you accidentally touch a Line button, it can cause an unwanted cracks, similar to bad contact on XLR. Not tested, but probably when unit is near bass combo or loud studio monitor - it can cause problems. But I've decided not to return device, I can fix it myself, and not to send pre-amp from Ukraine to Germany.
UPD. This issue with cracks on button almost gone, probably some dust was inside from factory.
Conclusion - perfect unit for it's budget, when i'll need some more channels of neevy sound - definitely would buy more !)