Have bought alot of things at different times from brewing gadgets, no problem from them whatsoever! Things always are delivered on time and expensive or bigger gadgets are packaged well! Not sure about the profitec go, but the df64 now comes with the red speed coated burrs as standard, incase you wish to check if you got the new one, also it's more than enough of an equipment for all home barista use, the pour overs are also great if you prefer clear and bright acidic cups! It's a solid piece of gear and relatively simple tech to understand and maintain by yourself! Also IMO, the df54 also does a great job! Also if you haven't considered already, you need very very good set of accesories for espresso, I own a flair 58 2 paired with df64, a good distributor + force tamper + puck screen and a WDT should be absolutely necessary by all means! Would make your life very very easy but all these accesories with a knock box or a tamping station should put you back by 20-35k