Well we found them to be very good ourselves. They are very helpful too
I didnt have to write a sponsorship letter, I had to write a letter of confirmation, which outlined my relationship with my husband, how we met, how long we had been together etc
I did have to fill out a Sponsorship Undertaking form, which they sent me, once that had all our documents.
With regards to the amount of evidence. Its a tricky one, as each couple will have a different amount on how loing they have been together... in a nutshell they need a substantial amount of proof, not too little and not too much, that they might miss something vital. Does that make sense? for instance my hubby and I have hundreds of photos, but we sumitted approx 9 different sets 5 photos ion each, that spanned the length of our relationship, up to our wedding and reception.
My hubby submitted his application in Cairo, he was not interviewed when he gave it in, they took his biometrics, paid his fee, and was gievn a reciept.
I had a phone call on Monday 08/08/11, that was simply just verifying that he was still my husband and that he still wanted to come to the UK. Then they called my work to verify my employment details.
Nothing too taxing hehehehe...
Now we wait!
Thank you for your kind words honey!!!!
Don't hesitate to ask if you need any input... Although the moderators on here, are far more knowledgable than myself

Alhamdulilah for habibi..
Submitted: 19/05/2011
Recieved at BHC (Cairo): 23/05/2011
Call from BHC (verifying details): 08/08/2011
With Courier (24hr): 24/08/2011
**VISA GRANTED**: 25/08/2011
(Waiting time: 71 working days/ 14 weeks)