I buy extended ones for all of my handguns.
I file them down to the length appropriate for the pistol.
My G17 rides in duty holsters that keep it away from my body and have nothing in the way of the mag release to accidentally drop it. I filed it down just to the point where I can lay it on its side, press down on the frame on the gun, and it will not eject the magazine. Then I hit it with a soldering iron to give it a texture similar to the grip area on the Glock.
My G19 does double duty- sometimes it rides in a duty holster, sometimes in my MTAC, which does not shield the mag release. So, I filed it down to just a hair shorter than the Vickers mag release, and then gave it the same texture as my G17
My G26 only rides in a MTAC, so I didn't touch the release- I left the factory one in there. For whatever reason, the overall grip size makes it easier to eject the magazine even without the extended release, so its not a big deal.
My G21 mag release also sticks out to the point where its not a big deal. The larger grip makes me shift my grip slightly to drop a mag, so an extended release really wont help. I may get a LWD extended one, file it and texture it to see how it handles but I dont really see the need as of now.