Joined: Aug 2008
Posts: 13,140
Likes: 2,163
From: Ann Arbor, MI
Bikes: 15 Kinesis Racelight 4S, 76 Motebecane Gran Jubilée, 17 Dedacciai Gladiatore2, 12 Breezer Venturi, 09 Dahon Mariner, 12 Mercier Nano, 95 DeKerf Team SL, 19 Tern Rally, 21 Breezer Doppler Cafe+, 19 T-Lab X3, 91 Serotta CII, 23 3T Strada
Dunno which Echowell you're talking about, but I've never seen one that impressed me, but that said, if it's just your typical 9 -12 function cyclecomputer, there's not much to worry about, so buy from your shop.
Personally, I use a Knog NERD on my folder, because I like the style and ease of install/removal, but primarily because the whole screen is the one button needed for operation, so it's a breeze.