[Sony Xperia S, Acro S, Ion] mattes13:
Xperia Acro S

I'm very happy with my Acro S. For me, it's the most suitable phone, even compared to current models.

It's 4.3'' display has just the right dimensions to still be used with one hand and to still fit in any pocket.

It's water resistant; which is important since i'm sometimes somewhat heavy-handed (I already sunk two phones in my life, one got irreparably damaged by hot spiced wine aka "Glühwein").

It's SD-card slot enables me using my 32GB memory extension for keeping my music, my pics and videos and some general data. Which is not always that important in everyday-life, but when travelling, it's really nice (eg OSM map data).

I have an unlocked bootloader and have it rooted since my third week of use (which was Stock ICS that days).

With the camera mods from XDA members, even the camera makes nice (enough) pictures and videos. It's quick shot by hardware button feature is great.

My battery lasts 48h with usual use (including the sleeping times). But (to be on the save side) I usually charge it every night. I don't switch off Wifi, Bluetooth, ANT, GPS, GSM/3G-Data.

I like the ANT+-feature for running. 1 hour of running with BT headset, music player, GPS and heatrate tracking (runtastic) drains my battery by something like 10% (including the other general stuff like mail/calender sync and stuff at that time).

I use it for playing music on my way to work via bluetooth headset and in my car via bluetooth caraudio connector.

I home-improved a common docking station to be my car cradle for charging and provding me easy access to navigation and music control while driving. (I extremely like the charging pads of the Acro S for that, since I don't have to connect any wires.)

I home-crafted an alternative charging cradle for the charging pads; so I can place the phone horizontally on my bed while charging. (You know the "Sleep-as-Android"-app? Does not wake you when you're in deep sleep (until a deadline).)

I like to impress other smartphone users (especially iPhone) with the OTG feature. ("You want the photos of the last class reunion? You have your USB memory with you? You can have them right here and now...":cool:)

The phone is very stable (was with ICS and is with JB). I can't remember when it's OS crashed last time. I sometimes reboot it to free up some left-behind memory; that's all.

I like reading magazines (PDF) with Acrobat Reader when having to travel via train. The great display resolution makes it look really nice. (Of course, only if the magazine's good. IEEE Spectrum is good! ;))

I'm just waiting for an updated (XDA member's) 3.4-kernel giving me working cifs/smb-support, so that I can use my NAS again. (With ICS you needed a downloadable kernel module; JB kernel should already have it, but was broken in Linux' 3.4-sources.):fingers-crossed:

Just two little things to complain:

It's camera could be a little less noise when dark.

It could have more RAM. (When you have a lot of heavy apps running like Whatsapp, Hangout, Firefox/Chrome etc, Android starts continuously stopping and restarting background tasks and kills the launcher. That's annoying and drains the battery.) So: 2GB RAM and a better camera and it would be perfect.