We loved our stay at Allans. The neat little room right by the main door suited perfectly our needs. Granted we didn't need it for much beyond sleeping and having a place to set our luggage at, but I've no doubt it could've worked for quiet studying etc just fine.
The train to London Bridge took hardly more than fifteen minutes (if even that), so the place was very accessible too. Interval for the trains seemed to be around 20min, or three/four per hour if you will. Handy!
Also worth noting that while Allan was very helpful in aiding us with London overall, he forgot to mention what a lovely little place Ladywell itself is. Especially the (new) Ladywell Tavern served excellent burgers, not to mention it was hosted by the most delightful crew of staff!