I love doing patrons, because I know so many in the art field that it's easy for me to recommend others based on the work they do. I also like to perks, and most of all I love to support artists in there craft. I had someone asking me about realistic anime artwork, and I showed them some examples of a tutorial posted on a patron. They really liked it, and it got the artist another pledge.
The issue I seem run into a lot is it's not always clear if the artist is active, or what you receive. When this occurs I tend to not pledge. Better to not have funds taken out if an artist is not active. I have had this done before, and I just learned that if the artist doesn't respond to my note send then I'll just simply not pledge for that month, or etc until I find out.
I don't really have a preference if I prefer doing patrons or not. To be honest, I enjoy the ones that give discounts, or commissions due to the fact that I get these anyway. Though, I know patrons can be a lot of work for an artist to keep up with along with every day life. I've seen some of the busy posts, and it makes my head spin. So, either way I continue to support people.