They're inexpensive enough that you could buy a set to have as a backup to your AKG. 
Actually, that was one reasons I bought my first Lekato set. I was using a Shure GLXD16 that had worked quite well. Even though it was a 2.4 GHz system, I never experienced any problems with it. But, once Shure discontinued it, I wanted to have something else to fall back on if the Shure started having connection issues. But the Lekato system worked well enough that I just kept using it to avoid any potential future 2.4 GHz issues. And at that price point, I bought a few others to try them out (including the UHF WD70).
Actually, that was one reasons I bought my first Lekato set. I was using a Shure GLXD16 that had worked quite well. Even though it was a 2.4 GHz system, I never experienced any problems with it. But, once Shure discontinued it, I wanted to have something else to fall back on if the Shure started having connection issues. But the Lekato system worked well enough that I just kept using it to avoid any potential future 2.4 GHz issues. And at that price point, I bought a few others to try them out (including the UHF WD70).

