I have three asp engines now and so far they seem great . I have the OS 160 Gemini that I absolutely love . I also have it's clone the ASP 160 Twin and so far it is proving to be a fantastic engine . The ASP's are cheap compared to the OS engine's but so far as I can tell they work great . I would not bother with a 4 channel radio myself . If you are planning on staying in this hobby you are going to need a radio with at least 6 channels . My advice would be ,Don't cheap out on your radio system or you will just be buying another one very soon and you will have a hard time selling your old one .. I would get a 7 or 8 channel 2.4 system . Its hard to know what you want when you are first starting out and every body will have a different opinion of what's best . I like my Spectrum DX8, because I find it easier to programme than my Aurora 9 also it will hold a charge much longer . The DX8 holds 30 different model memorys so you can have 30 different planes stored in it memory and all you need to do is switch from one to the next and you are all set and ready to go . All your trims and control surface deflection direction is set etc. . If you are on the wrong plane it will not work at all .