Really pleased with this overall! I have this pedal connected to my larger Kenton MIDI setup for the purposes of sending clock signals to my pedals. I'm also using it to control alt functions of the pedals with my Novation SL MKIII, great to avoid needing to move knob positions on the devices themselves.
It works for more than just Meris pedals too. I'm using it to send MIDI to a Meris Polymoon, Meris Ottobit Jr., Meris Hedra, and a Strymon Flint V2.
One thing that wasn't clear to me before purchasing the product and is worth flagging to buyers: The 4 TRS ports aren't independent. They are a chain. This means each connected pedal needs to be configured to pass MIDI Thru, so the incoming MIDI signal is sent to the next pedal in the chain. It also means that all pedals need to be powered on and passing the signal along the chain, so you couldn't only be using ports 1, 2, and 4, for example. Not a huge thing but obviously if any of your pedals don't have a MIDI Thru configuration, you would only be able to put one such pedal at the end of the chain.
Anyway as I said, this hasn't been an issue for me and overall I couldn't be happier with the results!