What's to be lukewarm about? There are some particulars to pick on, but not complaints. Some of the smaller frame sizes can only take limited tire sizes. This isn't really a big deal unless you are particularly short and heavy.
I'd recommend getting the 300-series ALR frame because the cable routing is nicer and will not attract as much dirt, the frame will ride better, there is more tire clearance, and it's nicer in every other detail.