Hi Anoop
The user can tweak their profiles, but it's a bit of a dark art and I'm not totally convinced it can ever work as well as Jepp. For example, we can get one of our Globals within 200lbs burn over an 8-hour leg, but that's normal M085 setting. Where we struggle is getting a convincing performace at, say, M082, or for anything longer than 8-hours fullstop because the stock profiles aren't - as far as I can see - up to it.
Case in point was one of our partners squeezing 11-ish hours out of a GL5T using Jepp, whereas we couldn't get anywhere near using PPS. That's the difference IMO, but for day-to-day (and probably airline schedules) I think it would be fine unless you're operating on the edges of performance.
My 2c