Attendees at Microsoft’s Build conference last month were given an Acer Iconia W3 tablet, presumably because it is the earliest examples of Windows 8 on an 8″ tablet. I find it hard to assess; it seems good value but is a frustrating device.

The specs in summary:

• Processor: Intel Atom Z2760 1.50 GHz Dual-core
• Memory: 2GB
• Storage: 64GB SSD
• Card slot: MicroSD up to 64 GB
• Display: 8.1″ Active Matrix TFT Colour LCD WXGA 1280 x 800
• Graphics: Intel Graphics Media Accelerator HD, shared memory
• Wireless: 802.11b/g/n, Bluetooth
• Ports: HDMI, Micro USB, headset/speaker jack
• Cameras: Front and rear
• Microphone: Yes
• Battery: 2-cell Li-Polymer 6800 mAh
• Size and weight: 11.4 x 134.9 x 219 mm, 500g
• Price: Around £350 or $430

Since this is an x86 device, it comes with full Windows 8.x, not the locked-down Windows RT edition. My guess is that Acer did this because Windows RT has been a hard sell, thanks to the poor selection of Windows Store apps on offer, indifferent performance, and confusion among customers when they discover that none of their existing Windows apps will run.

On the other had, do you really want full desktop Windows on an 8.1″ device? I view it with mixed feelings. Technically it runs well, and means that you have amazing capability in a small and highly portable device. The case against is that desktop Windows is designed neither for touch, nor to run on such a small screen. In order to use it, you need good eyesight and ideally a keyboard and mouse. The mouse is especially important, since targeting small desktop icons with fingers (at which I have become quite adept on larger Windows slates) is a real challenge on this tiny display.

There is a matching Bluetooth keyboard/dock (included in the picture above) which is available for around $80 and which was also handed out at Build. The underside of the keyboard forms a kind of case.

I am typing this review, naturally, on this very keyboard, and I am would not want to tackle it with only the on-screen keyboard. It feels cheap and plastic though, and I saw one Build delegate struggling with a broken key after only a day of use. Keyboards are quite delicate (some more than others), and arguably it would make more sense to protect the keyboard with the tablet, than the tablet with the keyboard.

Another issue is that the Bluetooth keyboard does not include a trackpad, perhaps because it would require a docking connector rather than just Bluetooth. However as mentioned above, the lack of a mouse is equally troublesome in desktop Windows. Therefore I have plugged in a USB mouse in order to work on this review.

Of course, once you have loaded your bag with keyboard and mouse as well as tablet, you begin to wonder whether a conventional laptop would have been easier. I admire Microsoft’s Surface design, where the keyboard cover does include a trackpad, and where the keys on the Type cover are folded inside the cover and therefore protected in your bag. The Surface Pro is far more expensive, but Surface RT not so much, and I suggest that Surface RT is a more satisfying product despite its locked-down desktop, especially with Windows 8.1 which includes Outlook.

The Iconia W3 also has a grainy screen. It is usable, but the worst screen I have seen for a while, and not helped by a high-gloss reflective surface.

Annoyance number three is the micro USB port. Few devices expect to find micro USB on the PC side, so you will need an adaptor. The Build handout included one, but I suspect this is not in the box by default. Even with an adaptor though, it is a nuisance, though I appreciate the difficulty in including a USB A port on a slim device like this.

Performance is no more than so-so, which is what you would expect from the Atom CPU. On SunSpider 1.0, for example, with IE11, the W3 scores 671.5ms, better than Surface RT at 1029.2ms but behind Surface Pro at 209ms. I think it is good enough for a device of this kind.

The device does get uncomfortably hot though, in an area at back right which I presume is close to the CPU.

The W3 does have its plus points. Battery life is good, Office Home Premium is included in the price, and it is what it claims to be: a small tablet capable of running full desktop Windows. That means you can use VLC to watch videos on a flight, or Live Writer for writing blog posts, or FileZilla for FTP, or Putty for SSH, to mention a few utilities that I miss on Windows RT.

Making sense of this device means reversing your thinking about Windows. You should plan to spend most of your time in the “Modern” tablet user interface, while occasionally dipping into the desktop. If that mode of working makes sense for you, and you want an 8.1″ device, the Iconia W3 is a reasonable purchase. Take note of all the caveats though. A close look at this device makes you realise why Microsoft embarked on the Surface project.