I used migrate.org for both my fiancé visa and my spousal visa. The documents are easy to use and self explanatory. The best part of the service though is the team at migrate.org. As you can imagine, waiting for your visa/permit to come back can be stressful. The team was happy to help, answered many questions, suggested work arounds when things went a bit wonky, etc. Every single time I reached out to them, I was treated with respect and felt like they cared. Considering I just bought the pre-made packets each time and not extra time with a solicitor, this was amazing. I would recommend them to anyone trying to get a UK visa. They know what they are talking about and treat you like a person, not a pay check. Love, love, love them.