Well, speaking purely on repair/service basis, I can tell you that Sony CS seems to lack in many areas........🙁 I've worked on several and on occasion had to contact Sony CS for information. I had the information, and contacted them posing as the owner. Not only were they not very helpfull, on several occasions they were rude and condecending. The systems were out of warranty and basicly the CSR's opinion was that they did not care to give assistance to models out of warranty even on a fee basis and their main recommondation when asking about availability of proprietary parts was to replace the system with a newer updated one! Their online site as far as tech support and system info seems to be vague and information is sparse on particulars. The reason I needed to deal with Sony directly on a couple of occasions is, the systems were owned by a business, and they wanted to stay with proprietary Sony hardware for updating/repairing. After a few times speaking with Sony CS (and messing with them after they basicly refused to be of any real assistance) IMO they are geared more to convincing owners to buy new systems if theirs is out of warranty than offering any real assistance. We finally did the updates/repairs, but, I convinced the owner to use hardware other than from Sony direct and he was quite pleased especially when he saw the $$$$ savings!😉 The systems seem to be put together fine albiet a bit cramped for space, and seem to run as well or better than many other big name builders, but, having dealt with many companies CS, I have to say Sony's is the least helpfull of all I've encountered..................