Yes, the second installment is somehow a disappointment.
The re-appearances of the past film couldn't save the film.
Actually, the first film was sufficient to end at a cliffhanger, because just like many horror-thriller film series, the new installments just appear redundant and obsolete.
Would i suggest anyone to watch it? For once, if you watched the first part, you won't like the second part, that's my assumption. As such the film had a bad script. The casting was also not good.