There is usually a lot of buzz and excitement around the launch of any new product, and this is no different around the Fujifilm X-Pro1. Having attended the launch, and learning more about the development of the X-Pro1, I'm even more excited about Fujifilm's new X-mount and XF lenses. I'm a little disappointed about the lack of really fast f/1.4 lenses in the roadmap... and zooms limited to f/4, but one must consider the inevitable size of fast primes (f/1.4) or fast zooms (f/2.8). As a prime shooter, I will actually very contented with the fast 18mmf/2, 23mmf/2, and 35mmf/1.4 lenses, covering 28-35-50 on the 35mm equivalent... Fujinon Aspherical Lens Super EBC, no less!! That's my first reason why I will get this camera.
The new X-Trans CMOS sensor and EXR processor pro are the second reason. The "removal" of moiré without the need of an OLPF helps retain the high resolution in the image without any interference or contamination from moiré.
If you were to ask photo buffs what Fujifilm is known for, you would probably get 1) Fantastic Fujinon lenses, 2) Super sensors (SuperCCD, EXR), and 3) Instax mini... okay, not quite Instax, but the third selling point of the X-Pro1 is the compact size of the new mirrorless camera. While it might not be able to fit into your pants pocket and larger than many of the other mirror cameras, but it will likely not make your neck or shoulder ache from a day of shooting...
To me, combining these 3 elements, gives the main value proposition of the Fujifilm X-Pro1. Of course, this is not to say that this is a winner for everyone, and it still has its drawbacks... not that it really needs repeating, but there is no perfect camera / system. I can already see people commenting on the shutter lag, live view lag, OVF, the manual focus assist, RAF format, aperture ring, focusing ring, distance markings, price... some are because of differences in expectations, but different people will weigh these differently.
It may be a little early to conclude the success / failure of the Fujifilm X-Pro1. But just as Fujifilm bet on their 6MP SuperCCD while the competitors were off to the megapixel race in the past, opting for "quality" over quantity. Today's 16MP APS-C X-Trans CMOS sensor of the X-Pro1 also less than the 20+MP of the other APS-C sensors, but time will tell if the X-Trans CMOS has the "quality"... in essence, will the X-Pro1 surface as well as the S2pro or the f31fd? The X-mount system is also in its infancy and too early to say how well it will pickup against / among the incumbent DSLRs and mirrorless systems... but the Fujifilm X-Po1, XF18mmF2 R, XF 35mmF1.4 R and XF60mmF2.4 R Macro is a great way to kick off the system!!