I got the Alu Top Case + FR4 Plate / Blue Pink Keycap / Iceberg Brown Switch. In the pre-order it took about a month from purchase date to arrive.
The case is very nice, the gasket and plate make it rigid enough to not give when heavy pressure is applied but soft enough to absorb normal typing.
The colors look better in person. The key caps and switches are very nice and are thocky. The knobs are nice and have both a tactile press and tactile turn clicks. Each rotation direction and press can be programmed separately.
The packaging is very nicely designed and comes with plenty of padding and a clear plastic top cover.
The cord that comes with the keyboard is good quality, however, the color of the cord that came with mine did not match, but it is braided and coiled with a quick disconnect like many other keyboard cords.
Overall the Sky Loong GK980 punches way above its price bracket and is hard to beat if you need a 96%/98% that has an aluminum case with knobs.