Weclome to coffeesnobs and you are right in your assumption that you will get support and sympathy in regards to the decision you have made to pursue coffee and the reactions that you have already received from wife and brother-in-law.
I have had a small play on the combination you have purchased and I am sure you will be happy with your purchase and you should produce to good coffee in time. Have you thought about doing a course?
Chris will look after you I am sure. I bought my combination from him and he went above and beyond throughout the entire process.
I am sure you will win both your wife and your brother-in-law over in no time once you get the machine sorted.
Look forward to hearing more of your coffee journey.