Flashback is good for a moderate priced out-of-the-box pedal. I have an Analogman modded DD3 that's pretty great and replaced my Flashback, but it's not as versatile.
I also have a Strymon El Capistan. Best delay I've had but it makes noise on my board. I think the Voodoo Lab PP2+ isn't giving it enough current, even though it should be.