When I saw "Dream5" I thought that Dream (the OG one that recently became a 6 girl unit) had lost a member and renamed themselves. Which I thought would have been kind of weird and sad.
Anyway on topic, I never heard of them before this thread, but I liked Tabidchi No uta and Koi no Dial 6700. The 6700 video cracked me up.
They are kind of an old school, new gen SweetS.... just with a totally different concept.