[Xperia SP General] Parkside:
1- How is the overall user experience, I mean, are the transitions smooth and do apps open fairly quick?

Yes - it's a fast phone. A high clock speed and the fact it renders to 720p rather than 1080 means it's very snappy

2- What do you think from the display? Ive read that its pretty good for a mid/almost high-end smartphone but viewing angles aren´t the best

A good screen, not great like flagship devices. Viewing angles are fine IMO - Sony has a bad rep for this but the SP's viewing angles are a vast improvement on their older xperia phones

3- Should i be worried about ram? On my fist android phone, apps crashed because there wasnt enough ram, for example if I was playing a ram intensive game, while listening to music, the music suddenly stoped playing

I don't think you should be worried, this is improving with each update, but people have complained about this.

4- How is sony's support, has anyone had any problems with their phone?

Sony have a good support network, but there are some issues they seem unwilling/unable to address with this phone. Wifi is clearly a problem

5- What are the most popular roms arround here? and kernels? This is a big one for me, as i consider my self a flashoholic hehehe I ask because after a quick look at the android development forum in here i haven´t found much :( althrough Im happy to see DoomLord around (remember him, and his awesome kernels for the Xperia play)

A relatively new device and not especially common IMO, but development is steady, a rom a week maybe. I don't know which are popular, but stripped back ROMS and ones attempting to give the feel and look of flagship Xperia devices dominate. Kernels are all stock based at the moment, but FreeXperia and some independent developers are planning to bring CM10.1 and CM10.2 to the phone. After that I expect things to gather pace - MIUI and AOSP roms should follow on pretty quickly I imagine. There are a decent amount of mods as well

6- Is there any specific thing you hate about this phone? Anything?

The internal storage - around 5gb is available for the user, this is just about adequate, coming from a 2011 device I thought it would be enough, but because you can't move apps to an external SD, it get's used up quickly. I'm not a power user and it doesn't feel like enough. There are ways around it if you're rooted, but you wish Sony would do what Samsung have done and mod their builds to allow this

7- How is the wifi reception? Ive read somewhere that it was terrible but that seems unlikely, so what do you think about it?

I think it helps if you've got a newish router, but my experience isn't great and this is echoed by many others here and on Sony's support forums. There are ways to improve it, but out of the box performance for some users is unacceptable IMO. However with the tweaks in place I now get reception in parts of my house where none of my other devices (laptop, netbook, old phone) get reception - for me range has always been excellent, but connecting in the first place sometimes took several attempts or needed a phone reboot

8- Camera... How is it? And how does the front facing camera perform? I use it a lot in low light situations, and my nexus camera was kind of terrible

The camera is average, don't know whether this is a hardware issue or Sony's image processing - but the fact that people complain about the cameras on better Xperia devices suggests that Sony's software may be at fault. They definitely cut costs with the front camera - fine for video calls and basic snaps but not suitable for photography. Ultimately, whoever the manufacturer, people complain about cameras

9- Finally, would you recommend a different phone (in a similar price range of course) over this one? How do you think it compares to the s4 mini, or an lg L7 as those are probably the only other options available in my country

The S4 mini has a smaller screen (lower resolution too?), but more RAM, I think it's a better device if you want a more compact phone. The SP feels better in the hand IMO, it is somewhat chunky and heavy but feels solid and well made. If you've come from an N4 going to a smaller screen may be difficult. The SP is almost flagship standard - the corners cut aren't that important to sensible users, do mobiles really need 4 core processors, 1080p and 2gb of ram? I don't think you can do much better for the price - so it's really about the screen size when it comes to choosing between this and the S4 mini. I don't know about the L7