Benjamin, if you ask Ribcraft what they think of Ribtec then what do you think they will say ? so please be careful what you say about a boat especially if you don't have any experience of it. People do read these posts with a view to buying a rib which for anyone is major purchase. they need good sound advice from people who have used the boats, engines or equipment.
Actually Ribtec don't make a 5.45m rib.
Mine is 6.45m! (LOA 6.7m) and a deep v hull with constant deadrise which makes the hull very sea worthy, believe me! this is my second Ribtec.
If as JK says you meant Ribcraft then please amend your post.
Pete