We went with Which due to their reputation but have been sorely disappointed. We had a Help to Buy mortgage but we noticed that there was no mention of this in the mortgage offer document. We bought this to Which's attention and asked if there are any additional forms for the help to buy side that needed filling as the Help To Buy site suggested there were. They advised us that all was in hand, no documents needed to be filled and our solicitors and Nationwide were aware that this was a Help to Buy mortgage so the mortgage offer was correct. This was not the case and we almost lost our house and became homeless because of their mistake. The mortgage was delayed by 4 months and we ended up having to escalate to MD level in order to gain any appropriate level of service. The stress and extra fees this caused are nothing in comparison to the fact that it triggered stress induced alopecia leading to hair loss and eventually having to purchase a wig. We are currently discussing compensation with the company but they continuously avoid addressing this very upsetting and important fact. They have shown no humility nor apologised for this disastrous consequences of their misconduct. Avoid Which mortgage advisors unless you would like to be misinformed, loose your hair and have to perform the role of a mortgage advisor yourself despite paying them for this service.