I have run one for a couple of years. I hold R44 (trained on that) and EC120 ticket. I spent some months looking at everything from used jet-box, Hughes 500, an R44, an older single Squirrel. Did dream about an EC130 but it is sooooo ugly from the front.
No comparison for me; I bought a 2000 EC120. I did fit floats (you can do this with pilot removable bags - extra 36kg fuel when you take them off. I needed these for commercial work over water but I would otherwise have left them off and saved the weight.
The EC120 I have taken from South UK to the Scottish Highlands (and back) in a weekend - 4 adults and baggage. No-one complained getting out. And 5 people from South England to the Cholmondley Pagent of Power. I don't have a problem with power - just keep the weight within limits.
Fantastic views from any seat (back of a jet ranger is pokey and a Hughes 500... need I say more?). It is a great aircraft; mine has been very dependable and easy to maintain. Smooth in flight, looks great, very popular with passengers (and me). It also attracts a good deal of commercial work - wedding transfers are very popular!
I agree some have found EC slow with parts - touch wood it has not yet happened to me in a way that stopped the aircraft. And I have seen R44's taking significant cumulative hangar time; parts are faster but services take longer and you need parts more often. An old jet-box will also cost significantly more to service, I think, as would a Squirrel.
You have to watch weight & balance on all machines. The EC120 does not have the power of a twin squirrel or an EC130 - but it doesn't have the cost to buy or service either. If the machine is right for what you wish to use her for then go for it. If you want "Hot / High / Heavy" then you need more money and a Squirrel, or you want a ..... etc.... etc.... etc.