I like it a lot!

I like it a lot and will probably be installing it on my other guitars, too

I inserted the O-Port into the sound hole of my acoustic bass, and while the volume hasn't increased noticeably, I've eliminated all feedback when using an amp and the tone is a whole lot richer.

I like ur a lot

(It's just an estimate, but trust me, I've played A LOT of

It didn't do a whole lot for my Taylor, but worked wonders for my Takamine and Breedlove

I wanted to try this in my natural Martin with dual P/U, but the electronics extended all the way to the rim, which made putting in the O-port impossible without cutting it.

Very important to ACCURATELY measure your sound hole diameter for the right O-Port (small or large) and "be

I also found that there seemed to be less vibration where the back of the guitar would make contact with me (though that seems to be changing the more I play the guitar after installing the port).Is the O-Port worth buying

The O Port cracked and broke with my first attempt at installation.

The O-Port enhanced fingerstyle play, but it also added clarity to gently-rolled chords

The O-port works

I got it in just fine, but then had to use a thin tool (smooth end of nail clipper lever) to coax the part of the o-port that lacks a rim out of the guitar to fit along the inner edge of the top of the sound hole.

I've read from other reviewers that the O-Port helps to suppress feedback, which would be a point in its favour

The O-Port fits snugly - but not overly tight - which is good when the time comes to remove it, as well as reassuring it's probably not influencing top plate stresses and vibrations