You can read the full Sony A580 review at DPreview (Click here). It earns a very high score of 75% and a “Silver Award”. The Sony A55 sister got 76%. That’s a short excerpt of the conclusion: “The Sony DSLR-A580 is an excellent all-round performer that gets all the important stuff – image quality, metering, focus – right most of the time. Whether you like its slightly live-view centered design and user interface is pretty much a question of taste and shooting style.”
At that point I want to remind you that the Sony A580 is probably the last Sony camera having an optical viewfinder. The future is SLT (translucent technology with electronic viewfinder). The A77 and next fullframe cameras will be SLT models. As long as Sony can improve the electronic viewfinder technology that shouldn’t be a problem for any of us!