If I'm picturing the right thing, I think the Clover mini iron is more for doing things like pressing fusible bias strips, rather than pressing open seams... although I supposed it could be used for small seams. I bought one, but forget to get it out and use it very often. I also have a Hobbico iron, that is nice, but I don't like the handle, I guess it is something I need to get used to, but it just feels awkward to me, having the handle behind the iron instead of "over" the iron.
When I'm doing my piecing, more often than not, I'm chain piecing, and after I get a lot done, will get up away from my machine to go press all my seams. That gives me a reason to get up out of my chair and stretch my legs, especially if I'm spending my whole day sewing. I do want to try some paper piecing, and I will have to remember to get my small irons out and see which one I like better for paper piecing.