About the scan time, I would asume it depends on your connection and from where you are from. The computer is in Portugal, so maybe it will take some delay from here to your place.
Also, bear in mind, this is not a server in a "network Facility" I just have it running it at home, and since I hace a reasonably good connection I decided to try the pool, however I dont know if it is ready to be out of beta.I would think on that if I can get a full week uptime
For now ...
Node uptime 4.966 (119.174 hours)
P.S. Link of the blockchain last discovered block. Check the address and look the time you received you payment.
http://nib.p2pool.nl/block/76e6ba130fdbd44b759e8f1389fb87977573758c06b45a8592f1fd925f9fe936