I've got a small 3 mile commute each way and I regularly pop into town on my lunch break (2 miles or so).
I'm leaning towards the Gtech because of it's simplicity and the lack of hills on my commute. Any other suggestions from anyone? I can push up to £1500, but would prefer to stick around £1000.
edit: I'm 6'4" too, so the one size fits all on the Gtech worries me!
I have the Gtech escent, so if you need any info let me know. I got it for 765 in halfords (they did a £150 off promo a couple of months back, plus you get 10% off everything if you're a british cycling member - joining is free if you/someone you know is a HSBC customer)
It's a definitely a big bike. Certainly as big as I've ever ridden. I am 6 foot.
I really love the bike. It gets me two round trips commutes (about 12 miles in total) and I let the bike do ALL the work. It's a cadence sensor, so you put in very, very little effort in order to get up to max speed). It's the nearest thing I can get to being magically teleported to work.
The cadence sensor is both a plus and a minus. With a torque sensor, you may end up actually putting in more effort, BUT I think torque vs cadence for mountain biking, it's torque all the way.
The hydraulic brakes are great, as are the gears. Suspension and seat post are nice to haves. It looks really, really nice in flesh IMO.
So the major weaknesses are: the battery range, and the cadence sensor (though you may consider that an advantage - I do)
I should caveat all this by saying that this is my very first e-bike and indeed my first bike of any kind for years.
Let me know if I can give you any other info.