I had both. Started with the LRS and then moved to the .7s. I thought they were similar but .7s go a bit lower. I had a bigger space they were in so the .7s were more appropriate. Ultimately, I went open baffle to get the transparency of the Maggies plus dynamics that the Maggies lacked.
As to the OP, I think the decision to upgrade depends a lot on the size of your listening space.