I'm also curious about the possibility of getting out of my ETF due to poor service.
When I first got my E4gT things were good, a little better than when I had my EVO, but slowly speeds would drop to almost unusable levels. Then I rooted and ROM'd and things were better again, but sure enough things slowly got worse again. Chalked it up to my phone being bad, and was going to take it into a store to have them check it out (after reverting to stock).
Recently though, the few other Sprint users here at work have also been complaining about no data. Not just slow, but no 3g/4g, barely getting 1x signal too. I decided to chat with Sprint about it (using their chat system, so I could have transcripts). The first time was June 29, I was giving a ticket number, and an estimated fix date of 02/17/2012 08:03:54 CST, which they quickly changed to 06/30/2012 06:33:21 CST in their next message to me.
The 30th rolls by, and I chat again, when I'm told that ticket was specifically for a text outage, and that they'd reset my profile on my phone. After sending the signal to redownload my profile, and asking me to let them know when it was done, I never got another reply from the rep I was talking to (15 - 25 minutes of me telling them "ok it's done" "ready to test" "ok well I tried X app and still nothing, trying a website now... nope..." "hello?").
Next day, another chat, followed by "Ok I'll open a ticket with the techs, have a good day" and no ticket.
Jump to today, another chat. No record of that ticket from Monday in their system, and the last ticket regarding a data outage in my area was resolved, June 29. The first day I chatted.
The agent told me I'd need to call to speak with a tech about this issue and there was nothing they could do via chat (I buy that, but why not tell me that on day 1? Or give me the right ticket? Or... or...)
Frankly I'm fed up, but as I got the E4gT on release day, I still have a heinous ETF, and it's hard deciding continuing paying my bill for no service while I'm at work, or parting with $300ish dollars due to their service not working.