I got both this watch and the GW-M5610BC-1JF (which has the combi bracelet), and I've had the most basic GW-M5610-1 for a while.  I found the combi bracelet doesn't wear comfortably if you put it on the GW-5000, but that's because of my particular wrist size and shape, which is just perfect for the 5610BC, but too small with the combi on the GW-5000.

However, the strap that comes with the GW-5000 works well. It's better than the stiffer GW-M5610-1 because that one tends to "float" above my wrist.

I have a hard time figuring out whether I want to wear this or the 5610BC each day. This wins out narrowly because I don't have to worry about my wrists swelling up too much for a bracelet, or thinning down making the bracelet too jangly. Also I like the style of being a plain-looking G-Shock.  But the 5610BC is typically more comfortable.  It's lighter, it's just a bracelet, doesn't cling to you, you know?

The case back on this one is too smooth and sticks to the wrist too tightly. The whole super smooth coating thing is not really a good feature.

As for readability (the BC is reverse color) I think that's a wash.

Overall I regret getting this and only wear it out of guilt from having paid for it. Owning multiple watches is always a mistake. Consider the 5610BC to be a worthy alternative "high-end" square G-Shock. Don't fall for the trap that more expensive = better.