Generally speaking, I try to avoid using the ampersand (&) when writing the marketing copy at a website.
Or anywhere, for that matter.
It’s too informal for me and a casual approach to writing marketing copy has potentially negative consequences.
Anything that has potentially negative consequences online, no matter how small, I try to avoid. Therefore avoiding the use of the & qualifies as one of my Internet Marketing Best Practices.
Resources & References
https://www.probizwriters.com/PBW-blog/index.php/ampersand-usage/
https://www.quickanddirtytips.com/education/grammar/ampersand