wrote:
http://www.us-appliance.com/lgalwaco.html

I wonder how well the combo units work, no moving stuff from washer to
dryer

Not all that well. Look at the specs on the XL model. You can't dry
(11#) as much as you can wash (22#).

Since you typically will do loads serially, with one load washing and
the previous load drying, it'll take about twice as long to do multiple
loads. And of course these units cost much more than a separate washer
and dryer.