Do you think Micro Niche Finder can be good for finding passionate niches?

Micro Niche Finder is good for
Searching long tail keywords.
Shouldn't be an issue for your niche.

You need to get the setting optimized
For maximum results.

Good luck.

Yes, but I don't find it offers me much more than the free Google keyword tool to be honest.
Earlier versions of Micro Niche finder seemed better.

I imagine all keyword tools pulls data from Google keyword tool, but MNF is a great tool for people who don't know how to find money keywords to rank for. I personally like to get my hands dirty, but can't help running my keywords through MNF just to make sure I am right.

Another great thing I like about MNF is that it finds hundreds of keywords that nobody uses, and I just take them and use them as keywords to build backlinks, categories, tags etc... with them. Nobody bothers with these keywords, so I rank for them without any real effort.

I have micro niche finder.

I really don't know where you came up with the concept that it's "heading towards the grave" the customer support by James and his technical team is outstanding. I've found that any time (which was far and few between) I submitted a ticket for a bug, I was responded to almost immediately.

The tool is constantly and regularly updated. You have to understand there were a few minor hiccups as Google transitioned over to the "Keyword Planner" tool.

If you really dig into it, you can find some real good gems.

My only word of caution, don't put 100% blind faith in their strength of competition rating numbers. Sure I use them as a general guide. However, when I narrow my keywords down, I actually look at the front page to see what I'm dealing with. Sometimes what they have as red and yellow really isn't that hard to beat the competition on the front page. However, this just comes with experience with SEO and other tips and tricks I've picked up along the way.

Someone earlier said it does the same things that the Google Keyword tool does, I have to respectfully disagree with that, because you can do a deep or narrow dig on a particular keyword within the tool. Sure, you can do it in the Google tool, but using MNF, saves a ton of time.

Also, I find the brainstorm button to be a really cool tool. It will just randomly pull up some keywords. I've found products and niches I would have never thought about on my own, thanks to that little feature.

Lastly, now that Google has transitioned to the keyword planner and you have to have an adwords account to use it, some people have banned adwords accounts. If this is you, MNF, solves that problem.