I have had ClearTV for about 3 weeks now and it started out fairly good. I have the US and Canada channels and paid $10 via paypal for one month - I almost paid $25 for 3 months and boy am I glad I didn't. As an FYI I run it on my Amazon Fire stick 4k on an apk I downloaded from them. I live in the US and I have ATT fiber uncapped 1gig and routinely get 350mbps wifi where I watch. Clear has no VOD which is fine. Great selection of channels including Latin channels. As others have mentioned, the ability to set favorites is great. I was most excited about their ESPN + because I really wanted to see the Copa América. Since ordering it has gotten progressively worse to the point that for the past two days it's essentially unwatchable - every 3 seconds it buffers for 5 seconds. This is pretty much every channel I watch, including ESPN, History, Fox Sports etc. Doesn't matter. The Copa América Is so broken I just downloaded the Telemundo app (Telemundo on Clear is also buffer city). I sent Xstreamz an email a couple of times and never heard back but I'm not surprised as they're cheap and I really doubt there is anything they can do. So glad I only bought one month.
UPDATE
The issue was indeed on my end and if you're using a Fire TV 4k you might want to read this. Apparently Firestick can only pick up 5ghz on channel 36. Therefore, my Firestick was defaulting to 2 GHz. I went into my router, manually changed the 5ghz to channel 36, the Firestick connected to 5ghz and buffering is gone. Amazon seems to complicate these things unnecessarily. My apologies and props to Steven at Xstreamz for all the help and wonderful service.
Im very sorry to hear you are experiencing issues. I would be more the happy to help find the issue. Remember also we have the support group where you fan report channels and issues. Email me direct at bozz07022 at gmail and let try to solve the buffering issue. Many factors can cause buffering with iptv. We have over 16,000 customers company wide so its nit a widespread issue. But like i said shoot me an email so i get your message asap so we can get you fixed up.