After just a brief trial run, here is my assessment. The Gecko works very well on melamine and pre-finished plywood, as you might expect. Unfortunately, it works only marginally we'll, if that, on rough surfaces, such as unfinished plywood. And, unfortunately, it's a little pricey for doing half the job--but that assessment I'll leave to each individual and their wallet.
The "bottom line" re recommendation only gives two options: yes or no. I choose "yes" because I use quite a bit of pre-finished plywood for cabinet-making, but the most accurate choice would have been "Depends."