I've had my machine for about 5 years now and I'm still getting great espresso. My Briel gets heavy use, but the only thing I've had to replace is the brew screen (and that was $5). My guess is some people don't know what they are doing. Here's a few pointers:
1. Don't leave the basket mounted after you brew.
2. Keep your steam wand clean. Clean it each time you use it!
3. After steaming milk, if you want to brew another batch, turn off the steam button and dispense some water until the temperature light turns off. It's important because if you don't do this, you'll get burnt espresso from your water being to hot.
4. Keep your machine clean. Run a few batches of vinegar/water every once in a while to get rid of any mineral build up.
5. Spend the money on a conical grinder. You won't get consistent espresso if you're using a $20 coffee grinder.
The pump has a 25 year warranty (not that I've needed it). Spend some time on the Internet if you don't know what you're doing.
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