I'm glad you used the term 'in my experience'. That's the key really. Like you, I've had a terrible time with my latest Mac, and it's really disappointed me. Had a wireless issue after about 10 months (must have been an update I guess) which meant the wireless would drop every minute or two -...
I will echo what TWOCHOICEStom has said, get an Office 365 subscription which comes with OneDrive storage. It's a business expense and will cost you about £100 a year for the Office suite and all the online storage you need, you save everything to your device and it's automatically stored...