Ask HN: Any experience with the Mercury PL? [repost]

[preface]: This is a repost from a submission I made last night, probably not the best time to submit a question to HN I suppose, so I'm reposting in the hopes of catching any Mercury programmers.

Pretty much in the title, I'm looking for some comments on people's use of the Mercury programming language and how they felt about it. The language looks great, I haven't toyed with it at all but I do find logic programming languages a bit of a romance. I want to know if it is something worth learning for future attempts at putting into production.

For some comparison, I use Erlang and Python in production and I play with Scheme on a regular basis.