I got my Marshall Code 25 today. The bluetooth is almost worthless. I get it paired to my iPad Air. After I get it connected to my iPad, about 5-10 minutes the amp acts like it "times out" of the bluetooth connection. I made sure that nothing else was connected to my iPad by bluetooth. I started over and the "timing out" happened a second time. So it is a repeatable defect. When I use bluetooth to connect other things to my iPad, they never loose connection until I disconnect it myself. This makes me believe the problem is in either the Code 25 itself or Gateway and not in my iPad Air. I have an Apple Magic Mouse that is connected to my MacBook Pro and the only time it disconnects is when the batteries are low in the Magic Mouse. My MacBook Pro also gets connected to my Harman Kardon receiver by bluetooth. It also never gets disconnected unless I disconnect the bluetooth on my MacBook Pro or turn the Harman Kardon receiver off. My iPhone is connected to my Apple Watch by bluetooth. My Apple Watch keeps track of my pulse rate at all times and sends the info to my iPhone. I never disconnect the bluetooth between my Watch and my iPhone. Because of my heart condition, my life could depend upon it. If I lay my iPhone down and walk out of bluetooth range, my watch will get disconnected from the iPhone. When I walk back into range, the bluetooth automatically reconnects my watch to my phone. I do not have to do anything to get it reconnected. My iPad Air can connect to my AirTurn pedal, my MacBook Pro, my Harman Kardon receiver. The bluetooth connections are rock solid in these connections. This is why I believe the bluetooth problem lies within the Marshall Code or the Gateway App. I do know that I am looking at the bluetooth connection in my iPad and it shows that I am connected to the Code 25, but Gateway shows that the bluetooth is disconnected. For some stupid reason, Marshall has a Windows Firmware Utility to update the firmware of the amp, but they have no Mac Firmware Utility. When I unpacked the amp, I noticed it is about the same size as a Fender 5F1 Tweed Champ. Tomorrow I will see how the amp sounds to me. I also sent a copy of this to Marshall Support.