To be fair I also find the lack of clear indications of 30 & 50 to be annoying as they are very common UK speed limits. As I've been done for speeding 3 times for doing just 33mph in a 30 limit I know you don't need to be much over that 30. Made worse in the 1.4T due to lack of ideal gear at 30mph which means in 4th car wants to go faster than 30 but 3rd seems too low (and change indicator keeps flashing to change up!)
I also find the lack of clear indications on the rev counter equally annoying because I tend to look at that more than I do the speedo.
I use cruise control in the SPECS limits on the motorway and use the digital speedo around town.
Idiot clearly thought dark grey markings on a black background was a good idea.
After much research I had decided on SRi so it would have the digital speedo, but on test driving I found the seats uncomfortable. I drove an Excite straight after and really didn't miss the digital speedo, even got safely past a speed camera in a 30 limit in the 1.4T without the digital speedo on. You get used to it very quickly.
I'm not used to mine after 7K miles. It is not really a case of getting used to them anyway, they are simply impossible to clearly read while driving in many different light conditions due to poor colour choice with very little contrast and no clear graduations for every 10mph. The smiths speedo on my 1960 Land Rover is far superior. On such a critical and important gauge you should not need to get used to it or have to use other gauges to see how fast you are going. Bad design IMHO
Most new Vauxhall speedo gauges are the same, its not just the Corsa, although the prefacelift Insignia at least had a decent wee idea to help see it better, the tip of the speedo gauge needle had a little red light in the tip of it which projected a red dot onto the dial face at whatever speed you were doing to make it easier to see.