They seem to have a much better air defence than the likes of Pak, I dont know however how effective they will be against F15s/16s/35s and stand off munition. If they are variants of Russian S300s, then im pretty sure Israel has a good idea how to counter those. I dont think we know enough about how Irans new SAMs are better or different in what they can do as they havnt been properly tested yet.
Expensive military hardware of GCC, western made, it's obviously better than any "made in Iran" missiles and defense system.
But the key here is
"Made In Iran", that's the strong point, impossible to remotely hack it electronically. Unlike all the expensive hi tech military hardware made in the west that it was buy by GCC.
The question then is, would USA backstab GCC if a Iran war starts? Would they use electronic backdoors to disable and remotely do sabotage to GCC military hardware? It's a possibility, USA current main features are lies and treason.
Of course, even a slingshot can shoot down a expensive F16 fighter jet if USA remotely hack it and shoot it down through electronic backdoors in the same moment.
Some example here:
When a Commie party came to power in Greece in 2015, Syryza, in the same day, hour and minute that
President Tsipras signed as president, a
Greek F16 fighter jet fell from the sky in the take off, in a very strange accident. did it was remotely hacked by USA?
See date and time of both exactly concurrent events:
en.wikipedia.org
Rolling reaction as Alexis Tsipras secures agreement with the right-wing Independent Greeks to form Greece’s new government
www.theguardian.com
NATO was created to stop spread of communism, so if a far left party come to power, it's likely USA would sabotage it, and a sabotage to expensive hi tech military USA made hardware can be done electronically, remotely with the right knowledge.