This probably isn't the best place to ask such a question; we're a little biased here! But to answer in as objective a manner as possible, I'd say it depends specifically on your needs and how you'll use it. If the N7 specs meet the your needs, then I'd say it's the best tablet you can get for the price, even 9 months after its introduction. However, if you have about 3 more months, I'd recommend waiting to find out the specs on the next version, rumored to be announced in May and available in the the summer.
Overall, the N7 is a well rounded media consumption and gaming tablet, and does okay with content creation. The screen is above average, battery life is satisfactory, it's very comfortable to hold, and you get the stock Android experience, which also means getting the newest Android version first.
It does have its hiccups, though. It can get a little laggy, especially when WiFi is very active. The build quality, though good, isn't going to blow you away. The speaker is average at best. People in the forums have complained about WiFi connectivity problems to Bluetooth issues to battery performance to the unit not coming on, plus other assorted problems. However, I don't think any of these problems are exclusive to the N7, nor as widespread as the forums make them out to be.
If the specs don't meet your needs, then, despite the great value offered by the N7, you should buy something else. For example, perhaps a rear camera, SD card slot, or HDMI out connector are important to you. The N7 doesn't have these items, so it therefore wouldn't meet your needs.