I have a couple Gen 1's, a pair of Gen 2's, and a Custom. I wouldn't buy another Gen 1 or another Custom. The Galloway trigger in the Custom is good, but not so much better than the Gen 2 trigger to be worth anything extra to me, and the extra height sights on the Custom might seem like a good idea - definitely a pleasure at the range - but they're CONSTANTLY snagging for concealed carry. Absolutely the worst possible sights for a deep conceal pocket pistol, short of gluing fish-hooks all over the slide. The Gen 2 sights - with a little contrast paint added - are very functional, and don't snag, and the Gen 2 trigger is 90% as good as the more expensive Galloway upgrade included in the Custom.
Other than those complaints I have with the Custom, it's an LCP. You can count on it to be light, easily concealed, easily carried, reliable, and durable. But the Gen 2 standard LCP is the flagship in my book.
Maybe someone will come out with low profile, carry bevel sights with tritium lamps to fit the Custom's slide, THEN I'll swap out and carry my Custom every day. (Or maybe I'll just dovetail and refinish my Gen 2 to accept Novaks...)