"To balance that a 300W Maplin one provides Chalice's only 240 volt capability when on the move, and has happily run quite a few things at the same time, (including one of those "Fisher Price") twin tub washing machines without once barking at us.
I think I paid £25 for it, so consider it pretty good value.
No experience of their 150 watt one, though.
"
and we have their 600w model which runs TV, fridge, charges net books & phones etc and our full size twin tub. Cost about £50 18 months ago and worth every penny, we have a Sterling 1800 which is only used for my hair dryer ( with the engine running!)