I've got both Metrel and DiLog testers and to be honest they're both fine. I think of the Metrel a bit like the old Skoda cars from years ago. Not a lot of people rated them, but, those who tried them were pleasantly surprised. Good luck finding work, there's loads at it on the domestic side but if you do a decent job at a fair price you'll be fine. Just learn to say "no", I, do industrial and domestic and you'll be amazed how many sparks are in the local pub on Friday night. You often give a reasonable quote then get "well Pete from the pub can do it for £100 less than your price", quite often that 100 quid is profit and part materials, to which I reply, "well, let Pete have the work then", there's loads of "Pete's" knocking about and most have no idea what they are doing.