I see you've already ordered, but I'll give you my 2 cents too
I had the original Maxpect Gyre when it came out. Moved a lot of water, but the controller sucked and it was not really built well. I had to replace parts and cleaning it was a bear. So I switched it out for something else (I can 't remember what, at that time I was testing a lot of different pumps to get what I wanted).
Recently, I went back and tried the Maxspect XF330 and it was great. Moved a lot of water, almost no dead spots with 1 pump, and near silent. I did swap it out for an MP40 just because I wanted to see if I could get by with it (it's easier to clean, especially if you have an extra wet side). And while it definitely got the job done, in my tank, it had some real hot spots that were ticking off my SPS, so I put the XF-330 back in.
I can't speak to the Red Sea versions, but I hear they work pretty well. I have an Icecap gyre I'm itching to try out, but I hear they're hit or miss.......guess I'll see.
For folks who say the gyres are hard to clean. I think the newer ones are easier from my experience. I only "deep clean" mine about every 6 months, which isn't' too bad. About once a month I just take a bucket of water/citric acid over to my tank and put the pump in that, running, for about an hour, then put it in a bucket of clean RO for a few minutes to rinse it off and then back in the tank. No taking anything apart or pulling the wiring to take it to the sink.