This is an attractive, intuitive application. Works quickly and superficially appears to work well.
Be very careful using postscript type1 -> otf conversions. In my experience (~50 fonts across many different foundries and designers) essentially no valid kerning pair data is transferred to the otf. Hence, the conversions cannot be used in text layouts or anywhere else the fonts' original kerning data are needed. It might be fine for display fonts where manual kerning is appropriate anyway. This is a particularly egregious bug for a purported professional typographic application. Caveat emptor!
As an aside, Font Gear, Inc. has been contacted about this problem and was sent comprehensive examples. Their only reply so far was a suggestion to turn OFF the preference item and see what happens. (perhap unsurprisingly, that resulted in no kerning data at all). Since, I have received no acknowledgment of the problem, much less an explanation or anticipated time frame for a fix.