We switched because Oberon was incredibly bouncy and we thought it might help. It did, though not quite the way we expected. He still bounces high, though it's getting a bit better. But the pace is much slower. Previously he could go from pink to lime in 4-6 hours with no warning, so we were checking him at least every 4 hours around the clock. There was nothing in between, either- he'd fly up and down between pink and green but never stayed anywhere in the middle. He still does those dives, but it takes a lot longer and we can see it coming, and he sometimes actually hangs out in blue/yellow. Nadir seems to be around +8, give or take.
You can sort of see it on his graph. Look at the "BG vs Date- all" tab. The red is Lantus, teal is Levemir, green is R, which we're not using any more. (Scale for insulin is on the right side, not the left- max dose was about 10 U.) Blue line is BG; black dots are AMPS and PMPS readings. The black line overlaid on BG is a 10-day running average to smooth things out a little bit and see trends. It's sort of hard to see now, but the BG lines while he was on Lantus are packed much closer together- faster ups and downs. Levemir has been much nicer. We still do frequent checks, but it's not as frantic as it used to be. If he's running high, we know that when he dives we'll have a bit of warning. So based on our experience I'd recommend looking into it! ECID, though, and what helped us might not help you. But I think other people have had similar experiences. Good luck!