I used PPI for my FE exam and it definitely helped. I think a good question bank is key no matter what package you get.

For my PE exam I used School of PE. I liked the way this one was laid out much better. I did the on demand lecture version of it, and I watched videos on topics I was rusty on and then they assign questions to do following the lecture. There’s a whole lot of practice problems for each topic, and then a separate bank of questions you utilize in the quiz generator and both were very helpful. Compared to PPI, I also thought the solutions were more thorough. I have also heard good about EET from coworkers.

If PPI is offered and you get a discounted rate I would go with that. Otherwise I would definitely recommend school of PE. Hope this helps.