Having used it for two months, I am in a position to give a proper review
Pros :
1 ) Speeds as promised. I always get ~15mbps when downloading from torrents/servers like cnet MS etc
2 ) Pings are good ( better than Airtel ) - as a result pages seem to load faster
3 ) Minimal downtime - down once in two months ( read below for "other downtime" )
4 ) Can purchase GBs. First 50 GB for Rs 300 and then 100GB for Rs 300
5 ) Post FUP speeds are decent - 1.5mbps during day and 4.5mbps at night ( 1AM - 9AM ). Much better than failtel
6 ) Even though they told me uploads are dedcuted from FUP, I have checked and confirmed that uploads are not counted

7 ) Post FUP, peering speeds are not affected. This means you can download popular torrents at ~30mbps throughout the month
Cons :
1 ) The internet connection doesn't work if there's a powercut in the area at night for more than 30 mins as there's no one at their office to switch on the genset and battery backup is only half an hour. This means that I don't have net randomly ( only at night as during the day they switch on their genset )
2 ) Peering downloads are also counted from FUP
3 ) NONE. No other issues till date.
I want as many people as possible to switch from BSNL/Failtel/hathway to Perfect Internet as I hate both BSNL and Failtel ( God I HATE FAILTEL )