That's pretty much my story, too. I've used Joy2Key for a few things with varying success. Some older games were just not meant for a controller. But I'm a recliner gamer, too. I have a wireless keyboard with touchpad for navigating Windows, but it's not good for gaming.I'm fluent in both. So I have, I would, and I'd do it again. Although I usually turn off auto aim, I enjoy playing FPS games with a controller very much. Matter of fact I used Joy2Key to make Dark Forces 1 playable on an Xbone gamepad and twin sticked it on hard. It was honestly fantastic and the fiddling around with settings was 100% worth it.
My PC is plugged into a big ass TV through HDMI and I usually game 7 feet away from it, slouched in a la-z-boy. I work at a desk all day, I'm not gaming at one. I'm that guy. I can absolutely M&K with the keyboard in my lap no problem (you're not twin sticking Apex Legends) but if it's a slightly slower paced game or the emphasis isn't necessarily on combat (Things like the Long dark) I'll go for a gamepad and regret nothing. When I play multiplayer with friends I will go M&K. Mechwarrior 5, Ready or Not, 7 Days to Die, ARMA 3, etc I'm using M&K.
Also, that hori Tactical Assault Commander thing is hilarious but they did one thing right : It's for Playstation, yet they put the only thumbstick in the right place. Good for them, they know.
You must be my clone or long-lost twin!(inverted y axis, of course)