The only thing I can say positive about the pump was that it taught me how my body functions with food and with insulin absorption. Other than that, I hated being on the pump. I pumped for 3 years with numerous complications and a rising A1c. I've been on MDI (with lots of quirks that I've learned to adjust to) for 6 years (?) after quitting the pump and my A1c is down to 6.1% Yeah, baby. The lowest I could get it on the pump was over 9.0% I think it was due to many allergic reactions and malfunctions the pump was giving me.
The only thing is that your A1c is already fantastic, so the only thing that you might like as a perk with the pump is the freedom to eat whenever you want?
A negative side of the pump for me was also that I was never "naked" while I was on it. You know what I mean? I don't mean to be crass or anything, but even when I was in the shower, the cannula was still in me and the medical tape was still on my abs. I just always felt like a "diabetic". On MDI, I inject and then move on and I still feel like "me."
I'd say to trust your gut. I had some really terrible experiences with the pump (I've tried 3 different brands), so I don't see myself EVER going back to using one, but I've heard many many success stories with them.