Newsletters: shiny and colorful or plain text?

I have a music blog and I'm starting to have my first email subscribers, so I want to start sending a newsletter. I've been looking for good newsletter templates, and I found one on Stampready that looks gorgeous (responsive, images, custom fonts).

But listening to a podcast I've heard Brian Dean (Backlinko) advising to go plain-text since it's less likely to get in the spam folder (or Promos folder in Gmail), and feels less "corporate". Thinking at it, all the "marketing gurus" have plain text emails.

I understand the difference between a marketing expert (trying to be personal) and a company, but my blog feels like a middle ground between those two ends: it's very down to earth and jokey, and I want to have a first-person interaction with my subscribers; on the other side, we also write serious posts and interact with partners so we need a little bit of credibility.

That said, I really really like templates but I'd rather have an ugly newsletter that gets read instead of a shiny one that ends up in the spam folder all the times.

What are you using (especially blog owners)?

Thanks in advance!

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