Picked one of these up today instore. Haven't assembled it yet due to the weather, but it looks like fairly solid wood.
Not sure if it's worth the original £99.99 price tag, but for £49.99 it suits my needs.
From the website:
* This Waxed Plain Picnic Bench makes outdoor dining fun.
* Features: Table and 2 attached benches.
* Material: Pine.
* Dimensions in cm: (H)72, (W)148, (L)131.
* Self-assembly: 2 people recommended.