I am looking at getting a 5' softbox (octagonal) to take on location for use on full body portraits. I have Bowens Gemini 500 Pro lighting. I have looked at Photoflex and cheap ones on ebay. My main requirements are that it is easy to put up and take down and won't fall apart after 6 months. Some brands get a mixed response on these requirements. Some units also do not offer a Bowens speedring adapter. Can anyone recommend a mid priced quality unit?