My biggest advice is to have a play with them if you can. While I'm happy with my Mazzer Super Jolly, I probably wouldn't recommend it purely on how tight the adjustment is on these machines. This may or may not be a deal breaker for someone else though. Most of them are pretty good in the $500-$2000 mark, and a lot of it comes down to personal preference. (There is a lot of love for the M4D though here).
