A recent datapoint on shipping speeds is that a W530 ordered Sept 28th arrived at the door on Oct 18th.
What kind of "issue" are you worried about? Microsoft doesn't help you? I had a HD failure with one about 4 years ago, and I didn't have any issues.
As for support, all companies suck but they are several orders of magnitude better than HP and Dell. We've had not had anything break for a year or two which is good and when we did (a t420 doa), it was resolved in 4 days.
I just bought a t430 off of a reseller there - needless to say, it wasn't customized but I got it in a few days time. It also cost around $150 less than the lenovo website.
(I ended up buying a refurbished T61 from our local eBay equivalent. Really cheap and works great.)
The reason I love Lenovo is for their build quality.