I think this coffee making system is brilliant. My mother has a gaggia proper jobbie and I can't work it! I bought my coffee maker from Tesco for £39.99 which i think is FANTASTIC value!! I've had it a week now and enjoy delicious coffee from it. The milk frother is brilliant, and the coffee certainly doesn't come out cold - maybe your machine is faulty? I haven't primed my machine every time i've turned it on, but the coffee is always hot. I do need to heat my milk though.
I also question the issue with the drip tray being difficult to remove - it just lifts right out with the tabs on either side. The water tank is as easy to remove as it needs to be, and to be fair, one needn't remove it all that often.
So far, I've only used the Senseo pods, but it also takes E.S.E espresso pods - which i will switch to just as soon as i find some which are just as good value as the Senseo pods (although at £5.95 for 18, they're still a hell of a lot cheaper than going to Costa!)
I gave it a 4 and not a 5 because I think that sometimes it doesn't give out as much water as it does at other times (could be me being dumb though).