I know you are disappointed about missing Q-Suites, but QR 777 is probably the best of the 2x2x2 seats in the sky. I can assure you there are far worse J cabins out there.
Unless you are leaving in the next few hours there is still plenty of time for it to change back to Q-Suite
It is undoubtedly the best and most spacious 2x2x2 aircraft. Great for couples. The middle seats are quite good for solo pax.
The Qsuites have the same number of seats in the same cabin space. But more privacy.