Rosewill is an odd duck of a company. Much of their budget peripheral line is typical cheap crap, but they also make stuff built from the ground up for quality, intentionally not cutting corners found cut in big name brands. And then they sell it for 20% less. Do not underestimate this company.
If they put their mind to making a good mechanical board, I wouldn't be surprised if it was as high quality as any of the premiums, at a lower price with a few improvements included almost as an insult. The braided cable and laser etched caps is typical Rosewill behavior. They knew their competition and they're taking aim. Looking at it now, it wouldn't surprise me if it were essentially a Filco with a better cable, fancy red chassis and lasered keys. This would make it a giant-killer out of the gate. Then again it could be a piece of garbage. (plus, no clue as to rollover ability)
Judging by design and construction alone, the $15 RK7300 is the highest quality keyboard I've ever used that was under $80. However, their mice are the worst pieces of **** ever made.
Edit: The Rosewill website: N-Key rollover: 104 Key could press at the same time, avoid any key jamming (Only PS2 mode, at USB Mode 6-key rollover)