In the US market, at least, the quality has improved dramatically over the past few years. Several established breweries now produce alcohol-removed versions of existing beers, with varying degrees of success - but in general my experience is that alcohol-free dark beers work better, the increased maltiness does a better job of hiding what's missing. IPAs and lagers can end up tasting somewhat thin compared to the normal version.

There's a few things I miss about the UK, and one of them is easy availability of beer that's less than 5%. Unfortunately that seems to have been creeping upwards - the shift to craft keg (rather than cask) beer seems to have been accompanied by moving more in the direction of US-style stronger beers. Several breweries do still produce milds that are in the <3% range, but it's increasingly hard to find them, even in pubs that used to be reliable suppliers. It's interesting how cultural this is.