Rosewill is not that bad, but Corsair is better.
From my experience the best brands are Silver Stone, Seasonic, Corsair(Some PSUs are just rebranded Seasonic's if I remember correctly), Antec. Good but not great Thermaltake, Rosewill, NZXT(very good product so far, but needs more time)

PS Vita and PC gamer
CPU Intel i5 2500K at 4.5 Ghz / Gigabyte Z68 Mobo / 8 Gb Corsair Vengeance 1600 mhz / Sapphire HD 7970 Dual X Boost / Corsair Obsidian 550d







