It's not the first time we've seen the Acer Chromebook 15, but the CB3-531 version, unveiled at Acer's global press conference, adds some extras to the existing range, bringing some added refinement.

Well, we say refinement, but first impressions don't leave us too enthralled. That's the thing about Chromebooks: they're cheap and plasticky, which is the compromise to pay for a £230 laptop (oddly the CB3-531 is $200 in the US, so far cheaper). 

However, with a new and larger trackpad alongside a large keyboard the typing experience is comfortable. There is a lot of space allotted to speakers sat to the side of the keyboard, though, which adds to the bulky overall scale. At just over 2kgs and measuring 383 x 256 x 24mm it's no slender laptop - but, for some, that will be its exact appeal. 

The LED-backlit display, which incorporates a 15.6-inch 1366 x 768 pixel panel, is reasonable to look at straight-on but - and as we say with so many Chromebooks on the market - really doesn't offer the very best viewing angles. The anti-reflective coating did serve it well from the stacks of light filtering into World Trade 4 in downtown New York.

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Under the hood the CB3-531 Chromebook opts for an Intel Celeron N2830 dual-core processor with Intel Graphics, which can last for up to 11.5 hours per charge. That's decent longevity, but no surprise given the scale of this 15-inch beast. 

In addition to a USB 3.0 port, there's a USB 2.0 on the opposite side, plus HDMI out and an SD card slot - which may come in handy to expand the 16GB of eMMC on-board storage. 

If you're looking for a big-scale Chromebook on a budget then the Acer Chromebook 15 ticks the boxes and may make a perfect online-centric Windows alternative. Just be aware of the Chromebook context and the limitations and low-end specification and build quality that come part and parcel with that.