A333 is a solid aircraft and the Envoy section is nice. As explained, they have put some money and training into it. I wouldn't waist the money on the go sleeper. The tray is very okward and unless you are in the full upright, verymuch in the the way. you have to it full open to use a computer. But as a whole worth it. The Envoy lounge is accessable on outbound leg, but really is a good product. THey use to have cold-cut sanwhiches, veg and cheese trays and self-serve beer wine with the open bar on the otherside of the lounge. Inter'n flights have priority as unless aircraft/crew problems, you'll be OK.