We stayed there once (HOJO 2, CCI, Desert Inn and Suites 2, GCH, DLH, PPH, BWPI, Camelot 2). It is owned by the same people that own Camelot, which we prefer slightly. Camelot's pool is on a roof and you can watch the firework from there.
Our stay at the tropicana was several years ago - and I think they have remodeled since. My only issue is that we got a room with a shower only. While my DH and DD now 11 take showers, I am a bath gal myself. And my now DD9 was preschool age and had never taken a shower and wanted no part of it. Had it been just me dealing with a shower only - it would have been fine. But man that little girl was NOT pleased.
If the price is right I would not hesitate to stay there again. The staff was friendly and the breakfast was like most of the other motels on harbor who offer breakfast.