Share your experience!
My xperia sola GPS doesn't work, while on my xperia U goes like butter with exactly the same apps and sistem (ICS).
After repairing and reseting with no change I don't know wath to do.
PD Sended phone to service center where apparently changed mother board, but I have the same problems???
In that case I suggest that you contact your local support team to have them check if the phone needs to be sent again or if this can be managed in some other way.
http://www.sonymobile.com/global-en/support/contact-us/contact-info/