Drakice, I have no problems with it except that the instruction manuals that came with it were all in German, which I dont speak.
I find the browser to be a bit sluggish, but even the browsers found on most phones and PDAs manufactured around the same date that the NDS was released (2004/about 3 years ago) also run graphic-packed web pages a bit slower than today's 3ghz mainstream PC/Aple would run them.
The browser works nicely for reading my RSS-Filled google homepage and all the links on that. I can browse and even reply to many of the public forums such as this one, via the DS Browser's ability to use cookies. email also works quite nicely.
I dont have any major complaints about it.
It is a DS web browser, and it does what it says it should do -- it lets you browse the web on your DS.