User blog comment:Linathan/Unit Spotlight: Harmony Kagamine Len/@comment-26085924-20150503110153

Len is the 1st ever Vocaloid that I had RS. I never used him as a Leader though, Lin is right, he is good on Arena, having him with his 50BC generation will help your team to fill their BB gauge a lot faster.

One thing, I got Grahdens by his help, with his Single enemy massive SBB attack. He's the only one left on my squad on that moment and good thing his SBB gauge is full. Thanks to this Vocaloid, my favorite so far among their group. I have Meiko and Kaito too, still not on their full strength. Im planning on raising Kaito for his mitigation abilities.

Of course looking forward for their 7* form too if they will be granted.

Thanks Lin for this good review on Len.