I have heard this from so many LR users. I am still using LR4. Once they fix the issue re: speed I might consider jumping on the subscription bandwagon for PS and LR. Until then I will stick with 4 as it does what I need and I don't miss what I don't have.
I know what you mean Sydney, I was using LR5 and it was only because our daughter needed the CC programs for her graphic design course that I started using LR and PS (although I am glad I did, as I would certainly miss it now!).