I use RSS with Blogtrottr to get updates by email. But I prefer it when the blog has its own newsletter. Saves me the trip to Blogtrottr and receiving their ads on each email.
I'm on the opposite end, I don't want several different newsletters that are all formatted with too much space wasted and designed to look appealing. Just give me a list of all the content and titles and I'll decide what I want to read. To each their own I guess.