Has synergy, good stats and an awesome art (golden will be even better!). I like it. And as said before - we didn't have a solid mech 5-drop. Maybe it's still better to play Loatheb in mech decks to protect your allies, but it's worth experimenting.
This isn't good. I have a lot of experience building mech decks (see Holy 4000) with many classes and I can tell you right now there's no place for a 5mana 5/5 that might get to buff something by +1/1. Someone mentioned Shaman mech deck, nope that's most definitely not going to happen. Most mech decks are about pushing a lot of damage early and having burst cards for later. The Clockwork Knight does neither. It would only be viable in a Priest mech deck (because of it's midrange nature), but Repairbot completely outclasses it so nobody would take step down and use this.
tbh, I was disappointed with all 3 spoiled cards today. The 2/3 is a worst Juggler, The knight is a worst Repairbot and the Combatant is just plain dumb lol.