Lit charts for poems of the decade

We are very behind on a lot of content at my college for English Lit A level edexcel, so I have been teaching myself the poems of the decade through litcharts.
Is this an alright source that will help me get an A? I thought that it is good for poems of the decade as the poems are generally quite shallow, and my pages end up being fuuullyyyy annotated, but was wondering if anyone else has used it for a level and achieved A A* grades )