I think Camilla has done very well in her first year as a Royal. I believe it was not something she craved, as being in the limelight is not what she likes. But there is no doubt that she and Charles are in love, and probably have been since they were young.
It was unfortunate that at the time Charles was looking for a bride there were still very strict criteria over who could be his wife. Thus he was nudged in the direction of a 'suitable' girl, whom he tried to be in love with.
I think we need to realise that if anyone is going to live in the total stress of the public eye they are going to have to marry someone they really love. Never mind the perceived 'suitability'. King Harald of Norway held out to marry Sonja. King Carl Gustav of Sweden waited for Silvia. Grand Duke Henri of Luxembourg insisted on Maria Theresa. All these marriages have stood the test of time, and all 3 women have been very successful at their 'job'.
Unfortunately Prince Charles is a very concientious man, and didn't want to rock the boat and perhaps set up a situation such as was caused by Edward XIII in 1936. It was his duty to marry a 'suitable' person - so he did. Unfotunately it cause enormous unhappiness to the 2 of them, and possibly caused more upset to the nation than if he had been a bit more stubborn.
I think people who are surprised at how well Camilla deals with people forget that she used to be the wife of a senior Army officer. In such a position she would have to do, in a small way and out of the public eye, much of the meeting, greeting and being interested in people, as well as backing up her husband.
There is no doubt that she has made a huge difference in Charles - even if she never did a single official duty on her own that would be quite enough service to the country. However, I am sure that she will start to take on more and more on her own - because the demand will be there.
Personally, I am delighted for Charles and Camilla. People have a much free-er lifestyle nowadays. I think it is hypcritical to accept divorces everywhere in society, but to moralize over what the Royals do and expect them not to reflect the accepted norms.
I just hope the Queen lives and reigns for quite some years - so that when Charles succeeds to the throne everyone will think it quite natural for Camilla to be Queen. The wife of a King in Britain has always been Queen, and there is no need to demote her - however modest she is.