I like to use ino with shikimaru and ninja war kiba when it comes to pve, in pvp I do not find her very good because there are a lot of fire mains out there and they reflect a debuff back. Which is very dangerous when it comes to single target debuffs like chaos and immobilize since you would basically be debuffing your own team with a strong debuff.

She could probably be used in something like great ninja war though, or you would need someone else in the team to trigger the reflect shield so ino c*e her ability after, but that would use a lot of chakra and means you wouldn't use her mystery untill round 3 or so since on turn 2 its best to use a 40 chakra skill if you have one. There is probably a few rarer ninjas that you c*e that mix well with ino but haven't tested that yet.

If you face no kurenai or fire main then she can be very strong though, especially vs targets that hit more than once with attack or specialize in tai, like guy/lee , 7 swords zabuza.

If you however insist on using her in pvp then use either a fire main or a kurenai in your team, so when your opponent reflects it back you reflect it again. It just means the target will be random.