It runs great, no issues until I lose a pump. I like to run two pumps on all my sumps just for redundancy. Keeping fish as long as me I realize it's just a matter of time until a pump fails. Having a second pump you only lose half of your capacity. Really no big deal if I repair/replace it in a couple days.
On my system in the 450 I have two 55 gallon sumps connected with a 1" line. Each sump has a pump. If one pump fails or even slows a little bit then that sump will over flow and the sump with the good pump will run dry. This is because the 1" line is just not big enough to equalize the two sumps. So now I have twice the chance for a bad fail. If either pump fails I have issues because my filtration will shut down until I repair/replace the failed pump.
You should test your system by running just one pump and see if the 2” line has the capacity to keep your sumps running. This will also help you decide on your water level in your sump. The sump with the pump running will drain a little but as long as there’s enough water to keep the pump running you will be fine. The sump with the pump off will fill up but as long as it doesn’t overflow you will be fine. Good luck. Two sumps sucks and I will never do it again LOL