I have had my 150 for 3 days now and have a love hate relationship so far. I don't like its need to be on the internet for the app to work. This is due it storing everything in the cloud. Although I normally only use 4 sounds live so it works for me to dial in those at home and them load them into the the presets. Then I don't need the iPad all. If I need to my iPhone has data so I can connect it to internet at gig at tweak sounds live. I wear it on my strap. At home I love the full range speaker. I can run my keyboard and a mike processed though iPads and a small mixer into aux. I then blend in the guitar using the blend feature on amp and then wallah instant one man band which sounds great. I have been in music one way or the other my whole life (55 years) and this is just like any other musicians tool. Concentrate on what it does not what it doesn't do and you will enjoy it more. More to come as I dig in deeper.
