I find it similarly euphoric to 2C-B honestly but only if you get the dosage just right. Too low and it's underwhelming and not very satisfying at all - too high and the bodyload is uncomfortable, confusing, and nauseating.
The similarities end there though, at a fully euphoric dose of 2C-B the visuals tend to be pretty strong and colourful, while 5-MeO-DALT doesn't seem to present much in the way of visuals at all until doses that usually feel quite uncomfortable on the body, and it's more of a stoned head high (often including munchies!) combined with *very* light visuals and either a body high or bodyload depending on the dose.
I've only experimented with smoking it and not with orally dosing it. I've heard the 60-70mg dose range is great with oral but can't confirm this - I know almost anyone taking the 20mg dose range mentioned in TiHKAL has been disappointed though. When smoking (or rather, vaporising) it the 10-15mg range is quite nice. It's worth noting that the smoke tastes awful though, so have something to drink or take a bite of to get rid of that foul taste afterwards.
Given how subjective experiences are, I think it's going to be hard for people to offer accurate comparisons to 2C-B that actually give you a true picture of what 5-MeO-DALT is like. I'm going to leave this thread open for now but don't be surprised if it gets closed as these sorts of comparison threads often come off as "Should I take drug X?" which we don't allow.
Spend some time reading through the
Big & Dandy 5-MeO-DALT Thread and its previous incarnation some more as there's plenty of info in there.