Bulked-up body
The A550 is heavier and bulkier than its lower-end brethren are--though it's lighter than the competition are--but oddly doesn't make as good use of space and is less streamlined for shooting. Like many dSLRs that have to remain backwardly compatible with older lenses, the A550 has a Manual/autofocus switch on the body that you confusingly have to remember to match with the switch on the lens.
Navigation
The navigation switch feels a bit too flat, without enough tactile feedback; I frequently ended up pressing the AF button while trying to navigate menus.
Flipping LCD
While not as flexible a design as a flip-and-twist articulated LCD, Sony's tiltable displays are nice for shooting at odd angles.
Typical modes
If the guide is turned on, when you rotate the mode dial a description of the mode appears on the LCD screen.
Not thrilled with the buttons
On the lower-end models, Sony puts controls for the ISO sensitivity and drive modes on the navigation switch on the back of the camera. I think that placement works better than the three, hard-to-differentiate buttons on the top of this one. It's also annoying that in a camera of this class that you have to set the ISO sensitivity via the back display--it doesn't appear in the viewfinder. Usually on dSLRs with buttons on the top right, they're placed forward enough to easily and comfortably reach with your forefinger. On the A550, they're set closer to the camera back where you can't comfortably reach them with either your thumb or forefinger unless you lower the camera.
Extension
Note how the LCD, when tucked in, extends beyond the viewfinder eyecup. That makes it relatively uncomfortable when trying to use the viewfinder. On the upside, the A550's grip is much better than that of its lower-end siblings; theirs are about 3/4 height, which feels much less secure.
Two views
Compared with the standard display (bottom), the graphic display (top) is intended to provide an educational view of the relationship between shutter speed and aperture, as well as the effect each has on stopping action and depth of field. I think it's odd that the graphic display drops the metering mode info, however. It's also a bit frustrating that Sony, which pioneered the interactive display in the A700 (where hitting a button would let you navigate the bottom view and change settings), opts for the disruptive Fn-button-into-different-interface approach (see next slide).
Function
While I prefer the interactive displays that are becoming more common--there's less of a jarring transition between looking at the settings and adjusting them--Sony's traditional approach may seem less cramped for some shooters.
More Galleries
My Favorite Shots From the Galaxy S24 Ultra's Camera
My Favorite Shots From the Galaxy S24 Ultra's Camera
20 Photos
Honor's Magic V2 Foldable Is Lighter Than Samsung's Galaxy S24 Ultra
Honor's Magic V2 Foldable Is Lighter Than Samsung's Galaxy S24 Ultra
10 Photos
The Samsung Galaxy S24 and S24 Plus Looks Sweet in Aluminum
The Samsung Galaxy S24 and S24 Plus Looks Sweet in Aluminum
23 Photos
Samsung's Galaxy S24 Ultra Now Has a Titanium Design
Samsung's Galaxy S24 Ultra Now Has a Titanium Design
23 Photos
I Took 600+ Photos With the iPhone 15 Pro and Pro Max. Look at My Favorites
I Took 600+ Photos With the iPhone 15 Pro and Pro Max. Look at My Favorites
34 Photos
17 Hidden iOS 17 Features You Should Definitely Know About
17 Hidden iOS 17 Features You Should Definitely Know About
18 Photos
AI or Not AI: Can You Spot the Real Photos?