Not sure what I would recommend for non-technical people but if you are a bit tech savvy, rolling your own is very robust nowadays. Buy cameras that don't need to be setup using an app (I prefer DHCP/Ethernet with web console), block them from going out at the firewall level, stop all services like mDNS/uPnP on the cams, install Blue Iris or BlueCherry DVR on a $500 laptop with 8TB USB drive, install the iOS/Android apps on your phone, open the right firewall ports, and now you can remotely monitor and watch your house from anywhere, safely.

I have 30 days of footage for 16 cameras recording to a 4TB HDD. The entire setup cost me around $3k over 7 years (cameras were more expensive in 2013).

There is absolutely no way I will ever trust a camera that needs me enter my home wifi password using an app, which then sends the plaintext password to a .cn domain to generate a QR code that the camera scans to configure itself (looking at you MECO Wifi IP cams). Way too many people around the world are falling for these cheap cams.