I have no experience of either pump but I have been pumping for 6 years and on my second pump. Neither pump has been closed loop.
Only you knows what is most important to you.
But one thought I have had about closed loop is that there are more parts that could fail. I am not saying it will fail often but, when it does it will not be at a convenient time and it may be stressful. I am glad I was injecting for 12 years. It has meant when my pump fails, it is second nature to go back to injecting.
Likewise closed loop, the looping may fail so I would need to revert to manual/open loop with ease. Four years of doing this would give me confidence for my next pump.
Four years seems a long time but it easily took me a year to get used to the change from MDI to pumping. Six years has gone quickly.
Clearly, this is just my opinion and maybe influenced by not having a closed loop.