I'm just about to refurb a tired bathroom (which has loose wall tiles next
to the bath/shower). I'm not keen on re-tiling and am thinking of using
interlocking wall panels (a bit like laminate floors but for a wall). They
look really easy to fit but has anyone had experience of these? Are they
hard to line up etc? I've seen some superb setups in hotels which only an
expert could tell from tiles but somehow suspect a DIY job might not be so
great!

Also what is the best way of securing these?

Thanks