Woodruff is often lumped in with the Goblins games because of the similar visual style, but it's actually it's very own thing, drawing influence from many SciFi classics to mash them together into Dadaist absurdity.
I really enjoyed playing those back in the days. In europe they were quite successful AFAIR.
When you play adventure games, you`ll eventually come across sections, were you`re hopelessly stuck. You click around and try to use everything with every thing. What Cocktel (tehe) did was to build a game around that, with just those "stuck scenes". To me that`s the adventure equivalent to a grind RPG. So I guess it`s a hate-love thing.
Edit: This probably should have better gone into the Goblins thread, sorry -.-
I think to this date, Woodruff is still my number one favourite point & click adventure game, despite being far from the refinement of its lauded Lucas Arts brethren. It's just so gloriously different and... well, French.