Like many others I've been using FTM for many years. I have found it to generally meet my needs, particularly while I was still learning about family history research and the importance of documentation and source citation. I have taken occasional advantage of the research interaction with the Ancestry website. While the link is handy, you have to be careful, and it can be frustrating as the vast majority of the hints are to sources I've already identified. As many others have expressed, I have never been tempted to do my work on the online tree but have always kept all my work on my local computer using FTM, and then occasionally "synced" it up to the online tree. I see the value in the online tree as making my research available to relatives who may have a passing interest, and more importantly to finding distantly related people who can assist by providing clarification or new information to my research.
While I've been happy with FTM, I've also recognized that it's not the best software out there, and is missing many of the customization and add-on capabilities such as can be found in Family Historian, and up until recently in TMG. Among these capabilities are better, and more efficient, source citation. I've never been happy with the way my sources are structured in FTM, mostly because I learned as I was going along and could never bring myself to go back and redo the older entries.
A few years ago I looked at demo versions of several alternative packages, but came to the conclusion that the amount of work required to move my fairly substantial tree, and thousands of media images and source citations over to another package would be significantly more than I was prepared to undertake.
So now I'm now seeing this FTM retirment news as an opportunity. Yes, I could hang on to FTM for a few more years, but eventually I'll have to make a move. I would prefer do it methodically and thoughtfully starting now rather than all in a rush in a few years due to some unforseen looming dealine. I've pretty much decided to move to Family Historian, along with the seemingly invaluable Ancestral Sources add on. I understand the observation expressed here that it looks and feels different from FTM, but that's true of pretty much any change in software, and shouldn't detract from the fact that the capabilities of FH appear to offer greater potential and flexibility.
I've done an initial test transfer of my data using the GEDCOM file format, and can confirm that while all or most of my media images came across, they are now linked to individuals rather than to the sources. I am going to have to recreate a massive number of individual -> source -> media relationships, but as I noted above I'd been toying with the idea of doing this in any case. Fortunately I've kept a detailed research log in Excel, which will assist me through this process.
So my goal is to not only move to the better software package, but also to end up with a better family history archive/tree.