Navman S100

+ Easy to use, nice neat compact design, pleasant voice prompts, lovely graphics, and lots of easy-to-access on-screen information. For example: the next turning is shown in words at the top of the screen, and shown as a little graphic, and shown on the moving map, and voice-announced!

- I stumbled over quite a few inaccuracies as soon as I started using the product. For example, I have been told more than once that I was entering a motorway (untrue); to take the second exit at a roundabout (it wasn't); some mini-roundabouts are ignored and some not. Once, despite a good satellite signal, the product seemed to have a brainstorm and completely misdirect me, then suddenly 'recover' and give me the correct directions! However if you use your common sense you won't have a problem. I like and recommend the product, despite its bad points.

+ can design and store your own routes using multiple 'waypoints' or let the unit calculate the route

- needs a stylus for good touch screen operation; the unit has slider on/off switch rather than button;

+ Easy to use and one of the most accurate Sat Nav's i've used

- The on/off button rattles slightly which can be quite annoying.When you apply pressure the rattling stops. Returned one thinking it was a fault but the second one is exactly the same.

+ It looks great, maps are good, main feature screen is good.

- Touch screen is not as sensitive as I would expect, quite poor in fact.

+ light weight and easy to use with good maps and traffic information.

- you have to go online for the user's information on how to use it.

+ Excellent product. Very impressed.

- None so far. I use it every day for work, visiting different clients and it hasn't failed me once.

+ Nice sleek design,very clear screen,very easy to use.

- None

+ compact, easy to install ,clear instructions on screen, plenty of options to use.

- not to clear instrution booklet on how to use,set ups ect.