Connect System (in the USA) launched the CS700 (UHF) and CS701 (VHF) DMR radio’s which took off very well in the UK in the earlier days especially due to price.
Programming took a bit of time to get used to but they were very popular. However despite expectations that firmware releases would be coming out to improve them, they never transpired.
They then launched the CS750 with an increase in channel and contact capacity with an increase in price to go with it. This model and their mobiles, the CS800 (UHF) and CS800D (dual band), did not take off as well as the CS700/CS701 range.
To my knowledge, no-one in the UK stocks Connect Systems radio as both the original vendors have since ceased trading.
More information on their website – http://www.connectsystems.com/amateur.html