My first heli was an eFlight Blade CX2. Although fairly easy to learn to fly, it shares the same problem as the SR in that it is large enough to create its own weather indoors, and outdoors it is virtually unflyable if there's any wind to speak of. It will do best in a school gymnasium or large garage. I understand the mCX being smaller, flies better in your house.

I think regardless what you buy, you must be prepared for crashes and to have to fix it. So whatever you pick, make sure you can get replacement parts quickly and easily from where you are. Look in your Local Hobby Shop (LHS) and see what they offer and if they have a reasonable supply or replacement parts/crash kits etc. for that which you are interested. Next option is to check mail order houses for availability etc.

Ultimately it depends on your budget and your commitment to learn!

I went from the CX2 to an Hirobo Sceadu .50 nitro, and never looked back. Many reasons for this move, but the big ones were that it could fly in significant wind, a seasoned pilot was willing to mentor me, and my mentor is an Hirobo dealer so the parts were available on site. Most importantly to me though was that it was big enough to see well, so I could learn more easily. Going nitro gave me longer flight times and therefore more stick time to learn.

BTW I'm still learning (slow learner but what's the hurry?).

Mack