I think this name flows nicely, but [name]Henry[/name] is such a traditional name while [name]Jace[/name] comes off as newer and somewhat… “yooneek”. I’m not a fan of names like [name]Jace[/name] normally, I tend to prefer older names, but for some reason I just really love it and would like to use it.
[name]How[/name] do you feel about [name]Jace[/name], and do you think these two names are a good pair?
I want to like [name]Henry[/name] [name]Jace[/name] (mainly because I love [name]Henry[/name] and the idea behind [name]Jace[/name]), but [name]Henry[/name] and [name]Jace[/name] feel quite mismatched to me (not only is [name]Jace[/name] modern, but it also seems nicknamey–I always thought it was a nn for [name]Jason[/name]). It’s not something I would use personally but I do think you can be a bit more creative in the MN spot and use those more trendy names. I like that [name]Jace[/name] means “healer”, and you obviously love it, so I would go for it. 
Good luck!
I like the combo! If I choose a traditional first name, I like to pick a more unusual middle name and vice versa. I think they help balance each other. Plus, it give me the chance to have a little fun with the middle name, and my husband is satisfied with the more serious first name 
I actually love this combo! [name]Henry[/name] [name]Jace[/name] has a lot of presence to me The classic [name]Henry[/name] with the fun [name]Jace[/name] makes for a perfect match to me.
[name]Love[/name] [name]Henry[/name], Hate [name]Jace[/name]. I would keep looking for the perfect middle.
I think it sounds fine! I’m not usually a fan of really traditional, older names, though… so Jace paired with Henry makes it seem better to me Personally I’d prefer something like Jace Ryder over something like Henry William.