I put a Hardie Secure Ground Anchor into my garage about a month ago. I bought it with a chain from Almax
It was much simpler to fit, though still hard work to drill through my garage floor. Its bloody solid, there’s no way that it coming out of the ground without a lot of noise and effort.
I put mine near the wall as I use my garage as a workshop and for storage as well. It spins so is easier to feed the chain through, its a chain that comes with me to secure the bike when i’m leaving it somewhere
it took me about 30 minutes due to all the stones in my concrete floor, and a whole load of sweat, but that just gives me more comfort that its secure!