So I'm venting my spleen about it on the interweb.
About my network. It's wired 100Mbps from the TV to my Virgin Media hub thing and _measured_ 20Mbps or so down and 2 up. March 2014 Have measured 37 down at quiet time.
Presumably somebody at Sony decided this product was ready to ship. Or was it never tested properly or has the corporation lost all interest in making usable products ?
In their favour they did fix one or two nasty crashy bugs. For example it used to keel over badly when moving between Text and Guide. This bug was repeatable.
Videos played over DLNA are really really jumpy. No wireless is not involved, the network is wired 100Mbps (and up) and I do design networking equipment that it is almost certainly the case your mobile operator, ISP and bank all use. In any case playing YouTube for example never suffers this. So DLNA video is a broken feature.
The whole user interface is slow sluggish. For example select "Guide" and it takes a few seconds to think about it. I suspect some of the online service slowness, as opposed to the Guide just mentioned is because the device accesses stuff on the west coast for some services. No I don't mean Wales but of the US. Yes that is the case. I have PCAP captures to prove it.
Once the Guide has come up for some channels, particularly the new HD ones it claims "No Event Information" at least initially.
iPlayer does not remember searches. There are a small number of programmes I watch on iPlayer regularly yet this simple usability feature hasn't been implemented. It is made worse when the AV2 switch as above happens. My friend's Panasonic does remember searches.
iPlayer doesn't remember position in a programme and navigating back to it is slow and clunky.
Some of the online video services have hundreds of videos (says so in the corner) yet actually navigating to see what is available is painfully slow with the result that these videos may as well not be available.
iPlayer pause doesn't always. See https://www.dropbox.com/s/mjmri2703xxnncb/iPlayer-no-pause.mp4
Failure to return to TV properly exiting Text. I've only seen this once or twice. The text goes away but the picture stays in the corner.
Failure to shut down properly. I know this because usually if it has not been switched on for say an hour the ethernet link is down and there's a Sony Logo at switch on. But recently (March 2014) I've noticed that it starts very quickly and without the Logo. This was the case until I unplugged it for a few seconds. I therefore strongly suspect it wasn't entering its proper low power state though have yet to measure this. I wonder how many millions of Sony TVs out there are consuming substantially more power than they should be because of this.