I've been having the L1520 for over a year now. I would say to go for it unless you can wait until the end of the year to purchase a WP with W10 for phones on it. I would say after owning a 520, 920, 1020, 635, and a 1520, the 1520 has been the best by far.
There are things to watch for however. One is the phantom touches that some 1520s exhibit. I have the green one, so I haven't had any phantom touches. The other issue is the light white blotches on the screen that comes after having the phone for a while. I had to do an insurance claim on my previous one with this issue. The white blotches are cosmetic, but a definite eyesore especially when having any app or the theme with a light background.