I currently have been living with a HR10-250 for quite some time. I'm actually quite happy with it, except for the lack of (new) HD content. I've been running with TivoWebPlus to manage it, and have been backing it up with mfs_ftp.tcl to cope with the odd disk failure and to make the odd DVD for long trips with my young son whose shows aren't always available on DVD. I also enjoy hacking together new programs to run on it... Assuming I'm happy with the TiVo user interface, how many of these features would I miss if I upgraded to the THR-22?