Hi there,
With proper care and use the unit should last you long enough to serve you well.
Please see page 32 of the manual's cleaning maintenance guide. And the link to help you deep clean the Fridge, follow the topic and hyperlinks, and the instructional video within for more details.
Manual
https://content.syndigo.com/asset/ec173d8e-77ce-48d9-905d-3e3122922bcc/original.pdf
Samsung refrigerator shelf/drawer removal and cleaning guide
https://www.samsung.com/us/support/answer/ANS00063107/
Should you need more assistance, please feel free to get back to us via the following options:
1. Facebook Messenger: http://m.me/Samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.Samsung.com/t5/Samsung-Community/ct-p/us
When you message us, please provide us with this reference number (1149122382) so that our team can gather your information.
Have a great day.
^Charles