Yeah, we absolutely love our leachie. The only downsides are the projectile pooing and possible cage / breeding aggression. Mine doesn't show any cage aggression (huffs, whistles, etc. but no biting yet). I know of some people that have very cage aggresive ones though. Some chewies can be defensive of eggs too, but in general aren't as bitey. My husband nick-named ours "the velvet log" lol. The name fits.
I have this one. It covers all rhac species. If you can find a copy at a good price, I'd jump on it. Pics are good too. Keep in mind the age on the book though, it is a few years out-of-date and as such, doesn't have all the crested morphs and I believe they've changed the naming on the leachie locales now.
I've heard this one is very good, but I haven't purchased a copy yet. It is just about leachies.
Leapin Leachies website is a wealth of info on locales and care too. The author of the two books above owns it and sells both leachies and chewies.