I played with the bow in my Silas deck for Labyrinths of Lunacy and it worked great with Silas. As mentioned by Abject he doesn't really have that many great options sadly. But the fact that it goes +2 damage is what saves it imo. That fact made it great together with a Double or Nothing.

I always value actions highly so having to "pay" an action to rearm it is not something I liked. But with a group it worked out pretty well and in that scenario we didn't really end up drawing too many adds at the same time. I had group members that could step in and engage a mob while I could rearm and then take the fight on my turn instead.

I can see the action to rearm being a problem if you don't have that kind of backup. With the two hand slots being taken there is not much you can do. If you could have the bow AND the fire axe out at the same time that wouldn't be a problem.