-shrugs- Welp, in my opinion, a little bit of improvement is still an improvement (especially when you're just inching your way through the campaigns) but yeah, I guess they are pretty much garbage. Though really, except for that special sword (got from turkey event) for my Lv. 35 Kenshin, I finished the 4-6 campaign with them. Is it because I have 3 Lv. 50 Generals?
Anyways, good luck with getting the stuff you want.