Need a Digital Delay with the following requirements...

Must haves...
1) tap tempo
2) tap tempo able to do the dotted eighth delay pattern
3) user-defined presets - at least 3 or so. Would rather not haf to scroll through them, but not a critical issue.
4) when you turn the thing off, delay must trail off naturally and not end abruptly

Like to haves..
5) ideally accept the Voodoo labs pedal power 2 supply
6) Other delay flavors like tape, reverse, modulated, etc.
7) tru bypass

I've heard the line 6 delay modeler has reliability issues, but I might have few other options. What about that Boss DD-20? Does it do dotted eighth?

I'm liking the DD-20, does the tape, reverse, modulation, 4 presets (5 actually), tap tempo, dotted 8ths. Not true bypass, but I don't know of any DDLs that are. You can run it in a loop if it you want it to be true bypass, but that would abruptly end the decaying signal. One feature I really like is the tone control. Most DDLs are just too stinking bright. Has a 5 year warrantee. Lots of versatility... This replaced my Line 6 DL-4 and I'm certainly not looking back. The DL-4 did some cool things, but the sound was not as good, it sounded really bad when you backed down the guitar.

The DD-20 is awesome..Though not true bypass - it doesnt eat your signal ( unlike the Line 6 which DEFINITELY changes your direct sound )

The DD-20 doesnt like to be powered by Pedal Powers though. I had to use a dedicated PSA-120 adapetr plugged into the PP's ac outlet

FWIW, I use a One Spot to power the DD-20 and about 6 others, no problems.

I'm using the Boss DD-20 also and so far I love it. I plug the adapter in the AC outlet of my Pedal Power 2. It uses about 200mA of current while the PP2 outlets only supply around 90mA. It's worth the extra hassle though.

You can't have both "trailing delays" and true-bypass. If the pedal is true bypass, the delay circuit must be totally bypassed when in bypass mode, therefore the trail can't be heard.

The original Line 6 delay would be my choice. You can switch it from true bypass to regular bypass, depending upon your needs...thus trailing delays is possible.

I heard of a few reliability issues when these pedals were still new, but nothing recently (the pedals have been out over 5 years now).

And Dano - I trust you man. If you say that the Line 6 eats your direct tone, I believe you. I just have never experienced that myself with that pedal.