I need to replace a Mira 415 mixer shower as part of general bathroom
overhaul,  it works well off a combi boiler but needs sprucing up

should i go for new mira 415 combiforce OR go for cheaper alternative e.g.

http://www.plumbworld.co.uk/1049-15149

at 99

is the quality very different? has anybody experience of this shower or roma
showers?

thanks

fr