The phrase "although it works" is correct and usable in written English.
It can be used to introduce a contrasting idea or to acknowledge a situation that is effective despite potential issues or drawbacks.
Example: "The design is not what I envisioned, but although it works, I can't complain."
Alternatives: "even though it functions" or "despite its effectiveness".
Although it works well at high signal-to-noise ratio (SNR), its performance degrades greatly at low SNR or the SNR varies at different frequency bins because even a single outlier from one frequency bin can potentially lead to inaccurate estimate through the averaging processing.
Although it works like any commodity market, what is being bought and sold does not exist.
You'll need a fairly powerful PC to run it at a playable rate, although it works fairly well in Firefox.
Although it works well with the chocolate, coffee, in my opinion, does not shout Christmas, but the buttercream itself is just as good as I remember it.
Although it works at somewhat different infrared wavelengths it will be able to study nearby planets such as 55 Cancri e in unprecedented detail.
A central criticism of microcredit is that although it works on a small scale, where borrowers can be monitored and even protected from falling too far into debt, when that model is used on a large scale, it can be damaging.
It was not a brilliant move by Mr. Buffett, although it worked out adequately in the end.
Last October, scientists at Duke demonstrated a working cloaking device, hiding whatever was placed inside, although it worked only for microwaves.
And although it worked well, and was patentable without an underlying theory, Hewlett-Packard's middle managers were reluctant to invest in the idea.
I could not get the plugin to work properly on my Mac, although it worked fine on my Windows XP test machine.
The test spotted tumor DNA in many of more than 600 cancer patients, although it worked better for some types of cancer and more advanced disease, GenomeWeb News reports.
