Well, after watching the episode that came out this morning, I can only hope they used that animation style for some reason (artist on vacation/temporary sick?) or just thought it would be cool and realize they should never do that again...
It does remind me of Naruto/bleach/fairy tail which is probably part of why I like it so much. I liked one piece for chunks of what I watched but never made it past somewhere around episode 200ish on either of my go's at it, Luffy and Zorro were the only 2 I really liked, nami/usopp mostly annoy me and Sanji/chopper were hit or miss.
I guess I should start checking out some other action/fantasy/sci-fi ones I haven't watched since I've liked almost everything I've actually given a shot.