What can I say: So far, everything has gone to the full satisfaction. There has been no system crashes described; the desired apps could be predominantly install (which you should, however, take into account the relatively old version of Android 2.3.6 "Gingerbread"). The battery life seems to be active much longer than the Xperia.
An information I do not want to deprive the interested parties, I have bought the phone with "the technology professionals" (shipping on Amazon); the Motorola board was a "refreshed" -Aukleber (which could refer to the firmware, with which it is to have so given the problems). Whether this also applies to the other Marketplace-sellers, of course, I do not know. , ,
