Catchy theme with saxophone, sexy body without cheap fanservice (except bouncing of course), cool personality, nice multipurpose mecha. She's PERFECT. IMO best debuting female pilot for over 5 years. I'm sorry Viletta-chan, but you're kicked out from my top 5 SRW chicks. It's real pain, that we won't see her again.
I think the PSP/VIta series does that as a odd way of making up for how subdued the OG series is in that department, though I personally suspect a spill over into OG proper sooner or later.