I am a Sigma fan. But I have to admit, that their latest "delay" of the new version of the 120-300 f/2.8, looks very, very bad on their part. I continue to believe, that it has the potential to be a great lens, especially regarding value for money. But this delay at the last minute, is just very unprofessional. It's also in keeping with all of the negative aspects accrued over the years, of their reputation as a company. If a product is going to be delayed, at least have the honesty to say so the moment you know about it, rather than waiting til the last day of the month that the announcement was supposed to happen.