what transmitter do you recommend

[nivlacf1]

been offered Ko propo receivers and transmitter plus a nosram receiver esprit 2 vintage gold (i think) for £50 (i think its 40mhz with crystals) but im not sure on it, plus i need another as running two cars for 2 children often in the same heat,just wondered what other people run and how they rate them and if the one ive been offered is worth considering, thank guys been loving all your replies in other threads really appreciate them