请问这句话的谓语?But if Apple and Google expect customers to ditch不再

请问这句话的谓语?
But if Apple and Google expect customers to ditch不再使用 their PCs for these devices,the accompanying services better be rock-solid.
感觉主句有点怪.the accompanying services would better be rock-solid.我觉得应该这样,就像we'd better .即we would better.这样.