I don’t think it’s quite ready yet. It’s still with [name_f]Gladys[/name_f] and [name_f]Ethel[/name_f] to me. [name_u]Dory[/name_u] is a cute nn though. I feel like [name_f]Dora[/name_f] would work much better.
To the non-[name_u]Berry[/name_u] public, [name_f]Doris[/name_f] might feel too old-lady because, for a lot of people having kids now, it’s a grandma name. [name_f]My[/name_f] friends are starting to have kids and my grandparents were born in the 20s, for perspective. Sometimes it has to wait until a name is more of a great-grandma name until it feels usable. I see [name_f]Doris[/name_f] (and [name_f]Dora[/name_f], and [name_f]Dorothy[/name_f], I hope!) being ripe for a comeback in maybe 10-20 years, but I wouldn’t be shocked to see some ahead-of-the-curve people use it now. [name_m]Just[/name_m] as today you meet a lot of little Hazels and Mabels and Josephines and TONS of Sadies, but 15 years ago they got the scrunched-nose, musty-old-lady name reaction.
But [name_f]Doris[/name_f] is old enough - like [name_f]Mabel[/name_f] and [name_f]Edith[/name_f], you could fairly call it a turn-of-the-century name - that it feels okay to me. I like it. I prefer [name_f]Dora[/name_f] and [name_f]Dorothy[/name_f] and think they’re more likely contenders to come back, but alas my last name eliminates all Dor- names 
[name_f]EDIT[/name_f]: When I was writing this another poster also brought up [name_f]Mabel[/name_f] and [name_f]Edith[/name_f], too funny!
I do like [name_f]Doris[/name_f], but only because of [name_f]Doris[/name_f] [name_u]Day[/name_u]. When I think of [name_f]Doris[/name_f] in relation to her, it makes me smile and seems like a bright and cheerful name. But otherwise, I’m not much of a fan. I think because of names like [name_f]Dora[/name_f] (the explorer) and [name_u]Dory[/name_u], have kind of spoiled the imagery for me a bit.
I think it would make a lovely middle name though 
Personally, I don’t find it overly clunky or unwieldy. It contains the same sounds as names such as [name_f]Dora[/name_f], [name_f]Dorothy[/name_f], [name_f]Iris[/name_f] and [name_f]Alice[/name_f], which are currently quite fashionable. It also has its roots in Greek mythology, like many currently popular names. I think the only thing that is keeping [name_f]Doris[/name_f] back is its “dated” reputation, which it could shed soon.
[name_f]Doris[/name_f] was my mother’s best friend in high school, and so the name has always had a pleasant connotation for me. Her parents were from Germany.
I also have a neighbor, a nun who we all call “[name_f]Sister[/name_f] [name_f]Doris[/name_f].” Another good connotation.
Yes, these are aged associations, but I think [name_f]Doris[/name_f] is a nice name once you think about it and could be revived.
Not sure why I forgot to close this earlier, oops! 
Thank you again for the input I’ll be adding [name_f]Doris[/name_f] to my list!