I have an LST and I like it a lot. OTA reception seems pretty solid on weak signals, multipath really however does play fits with the reception.
The channel guide is a little on the slow side compaired to the one on the satellite dish box.
Check out ebay, there are some good deals on refurbs. I got mine there and it's worked fine for over a year.
One thing, you really have to have a wide screen format monitor. There are no good options for 4x3 format displays.
One other thing, HD broadcasts almost seem like they are an experiment with the OTA. Every channel broadcasts 4x3 material in a different configuration - streached, letterbox etc. And sometimes, an HD broadcase goes to commercial and comes back in SD, then the'll fix it next commercial, sometimes the sound will change from 5.1 to PLII. Pretty annoying sometimes. It not the box though, it's the broadcasters I guess figuring out what switch to hit. Best of all are HD commercials in 5.1 sound, during an SD program. The HD commercials are about 15 db louder then the program you are watching. Really annoying.