Oh boy, I really dug it into this one a couple years ago!
As mentioned above they can be far more intimate they are more balanced across bass treble and mid-range and they are so easy to play because they are much smaller than any other guitar.
But it took a lot of demoing on my part as I'll describe below.
On the intimate side, when I found the right guitar, I find that the notes pop through so clearly in chords or individually, it's just a completely different experience from your regular jumbo or dreadnought.
For me the most important differentiation turned out to be a slotted peghead. I had no idea in the past why people use them and what their purpose is.
What they do is greatly increase the string angle which makes the strings more flexible and adds to the sound considerably.
In comparing tons of parlors, I found the slotted tone much more desirable and especially prefer the feel.. it's very low tension across all the strings.. much more like the bass strings of a classical guitar if you know what I mean..
As a result, I feel like I have far far more control over each note. The touch and subtle effects are just magnified.
On the other end of the spectrum, I played tons of just boring plinky parlor guitars. Bright, soulless, like that $75 beginning guitar that somebody gave you from Walmart.. except they were $400 plus name brands.
..
I finally found my absolute favorite parlor guitar..
Guild P-240 Memoir Acoustic Guitar - Natural | Sweetwater
https://share.google/Y1mramma15DsNHlQ1
Unless I need to prepare for electric or acoustic performances, this is it.. it sits next to my couch that I play it all the time..
I also love to record it. Incredible finger style, think James Taylor but more intimate and controlled, and wonderful rhythm that does not overpower.. think the opposite of Tom Petty's wall of acoustics.. which I love but this is the other thing
