Best 5 bucks a month I spend.
I should also say that your site is one of the few startups that I've seen that doesn't completely neglect security. Not sure if it's just part of your framework (symfony?), but I rarely look at startups sites that I can't break in less than a minute.
I signed up for your mailing list. I especially like the ability to see moving averages. Up until now, I have been using spreadsheets for this kind of thing. That works fine for charting, but not much else.
Historical archives! http://i.imgur.com/RsB99dN.png that's one thing that's always kept me off of services, not being able to export my workouts, so I made sure you can do it in CSV, Markdown, and bbCode (individual, date ranges, and all workouts).
If you want to give it a whirl here's an invite code w/o needing to wait - https://thesquatrack.com/register?c=nn5z3za84d
It does workout, nutrition, and body measurement tracking and I'm in the midst of deploying the routines and meta-routines - https://thesquatrack.com/soon over the next few weeks.
* Better search result info - http://i.imgur.com/RassIwF.png
* Flexible nutrition goals - http://i.imgur.com/8dabrHg.png
* Some meal fast logging - http://i.imgur.com/PdOBm0U.png
* Improved the dashboard a bit - http://i.imgur.com/hbs8ZTS.png
I'm not a UI/UX or business person, but I love code, so as long as it's functional, I'm happy.
100% solo founder and 100% bootstrapped ... it's been a heck of a fun journey :-)