First, what's wrong with the AsRock Extreme 4.
There cheap mb made for low end overclocking.
That's an adequate assessment, although "cheap" might imply "unreliable." In the realm of motherboards, I'd think that a lot of cheaper boards without extra features are no less reliable.
To tell the truth about what seems to be the only Z77 board available at the Egg, I bought one last fall. For some reason, I exercised more scrutiny than I'd ever mustered before to examine the board with a magnifier before attempting to use it. Somehow, it looked as though the machine which inserts CPU socket pin-springs made some mistake: there were some four pins that weren't where they should be -- not "bent" pins but pins inserted in the wrong place. I sent the board back for refund.
I had examined reviews about this board before the unfortunate purchase. It seems to hold up pretty well. The sort of thing I found may occur with a greater frequency in manufacture of AsRock boards of that year, but it most likely is a common QC flaw of other board-makers: somebody just failed to do an adequate inspection before it was boxed and cello-wrapped for shipment.
The board has an 8+4 phase-power design, which should assist in more stable and higher overclock settings. That being said, I've seen ASUS promote a high-end board with the statement "power phases aren't important; quality design is important." But as a rule, for OC'ing, I'd prefer 12-phase over 10-phase, and 10-phase over 8-phase.
If he's got it working fine, and all the features work reliably, I don't see the need to replace it with something better, unless he can get "better" for less than $100 -- new, used or refurbed.
I see some folks thought the PCB was "thin." A lot of lower-priced boards are "thin." Since they require 9 screws to secure the boards to the motherboard pan, that shouldn't much matter. I suppose we'd all like our motherboards to be as solid as the ASUS Sabertooth model.
Now -- suppose there's some feature that isn't working properly? If it can be replaced by a $15 PCI or PCI-E card, then just disable it in the BIOS, get the $15 functional replacement, and move forward.
So -- Rhezuss -- is there anything about the board that doesn't work to your satisfaction? I don't think you noted anything so far.
As much as folks here have contempt for customer-reviews (at Egg, for instance), I read through those things to get a sort of statistical profile.
Motherboards seldom show 80 to 100% satisfaction or 5-egg + 4-egg reviews. The AsRock board shows just shy of 70% total in the 5 and 4-egg category.
You can often see the reason for lower percentages on motherboards: a lot of newbies and chuckleheads who don't know what they're doing from the start tend to vent their frustrations. Mobos have a lot of features; it's difficult to navigate the BIOS; you can't just put the whole enchilada together and expect it to configure itself.
I've seen 50% favorable (5+4 egg) ratings for high-end boards over the last 8 years. I'm still using a 2007 board that had a 50% 5+4 Egg statistic.
Be happy.