Underrated Effect?

[stilwel]

Seymour Duncan Tweak Fuzz - silicon Fuzz Face with super-useful filter (tweak) control
Zoom MS-70CDR - so many great ambient fx. this replaced an Eventide H9 for what I was using it for.

The new line of Fender pedals:
Trapper Fuzz
Pelt Fuzz
Reflecting Pool Delay Reverb
Pugilist
Compugilist
Tre-Verb
Pinwheel rotary
The Bends Compressor

Lots of great stuff

[marqueemoon]

Demeter Tremulator

It’s a really nice sounding tremolo, and with the depth all the way down it’s a great subtle boost.

[crazypaws]

Echopuss by Way Huge

[jthomas]

Orange Crush compressor (or one of the many clones). Fattens up the sound. Every guitar player who has heard what my General Guitar Gadgets clone does to guitar tone has said that they are impressed.

[bubba899]

I think all the modern Seymour Duncan pedals are super underrated, but particularly Seymour Duncan Vapour Trail. It's got all the character of a really great BBD, very Carbon copy esq, but add to that a ridiculous amount of added functionality. The modulation controls on the front rather than internal trim pots, a flashing rate led for easily syncing repeats live and a TRS insert for using as a hardware delay for recording, or putting another effect on the repeats like an fx loop.

I agree that SD pedals don't get the love they deserve. I just bought a new 805 overdrive for a little over 100 dollars and can't believe how awesome it is. It was a Nels Cline video that made me check it out. He basically said that SD pedals are wonderful and not appreciated. He also likes their JM pickups.

Yeah that pedal is class. Again, it's a great example of that type of circuit, but with extra tweak-ability.

Visual Sounds pedals are great,
got the old silver Jekyl & Hyde and a route 66 in the baseball diamond housing.

Love the old Visual sound pedals! The V1 Silver J&H was my first ever pedal and I've still got it to this day. The new Truetone version is pretty good too, the overdrive side is more of a transparent drive than the old 808 style and the distortion is a little less intense, but I still kind of prefer the old one.