Think he'll suit them well.
They need someone who's capable of scoring, which neither of their current strikers are (Sturridge being obvious exception, but injuries...), and with proper service Ings can really make a impact they wanted from Balloteli- just he wasn't arsed to run but walk across the pitch.
Liverpool needs to go with this kind of transfers, young, hungry, willing to sacrifice for the team type of players instead of trying to buy "proven" names who'll just take paycheck with nothing to offer in return with Coutinho being great example.
United went for proven strikes with Falcao, overpayed him and got nothing in return when we could easily given that playing time to Wilson, doubt he would do any worse than Falcao.