Most important is the display: the Marquee's 4-inch NOVA display is a stunner, and LG seems to think it can compete with the likes of SAMOLED Plus. Well can it? You'll have to see it for yourself, but in a word: gorgeous. It's super bright, super sharp, and the colors look fantastic. It's noticeably smaller than its 4.3-inch (and now 4.5-inch) brethren, but we won't complain: it feels right.
Another thing to look out for is the "pocketability" of the Marquee. It's super thin and super light. Yeah, light is becoming the norm these days, but it's always refreshing when you can drop a smartphone in your pocket and not know it's there.
No, it doesn't have a dual or tri or quad core processor, but from an initial spin around the UI, everything seems pretty smooth. No stuttering, no stammering, and no hesitations. Sure, that could change once you put it through its paces, but until we do so, don't count the Marquee out.