The H1 is very basic in terms of the functionality it offers, compared to other more expensive recorders on the market, but given its price that is hardly surprising. The H1 is probably unique in that it has a completely menu free user interface - everything you do with the recorder you do using controls located on the fascia. In some ways this is quite refreshing, particularly for anyone with previous battle experience when it comes to dealing with impenetrable layers of menus. However, this is primarily what limits its functionality. You can do all the basic things you need to e.g. setting sample/bit rates (from 24bit/96k down to Mp3), and adjusting recording and volume levels. Line in (mic), line out (headphone) sockets, delete, play, fast forward and reverse buttons are also on the edge of the fascia along with a recording button which is located on its own on the front of the fascia. The H1 offers one button recording using the recording button, which you also press to stop recording and return to the home screen. Recordings are made to a 2Gb micro SD card (supplied) and the recorder is powered by a single AA battery.
Physically the H1 is about 4.5 ins long, 1.3 ins wide and 0.8 ins deep. Many of its controls are located along the right edge of the recorder which makes for a tight fit - consequently the buttons are small. Anyone with very large fingers may struggle. The recorder is also very light and I would guess mostly made from plastic. I would not want to suggest that its build quality is poor but you might not want to step on it too often.
If you can access the small buttons the H1 is actually very easy to use. The only real downside for me in its menu free operation is that if you have a number of recordings on the machine there is no way to visually scroll through them to select a specific one; you have to listen to them all to find the one you want. Note also that if you are at the home screen pressing the fast forward or reverse buttons will change the sample/bit rate, and it is easy to do this accidentally.
The digital recorder market is one that is rapidly expanding and there are a lot of models out there. So why buy this recorder in preference to others? Firstly it is being sold at a low price point that no other recorder can match so if you are on a budget it is a bargain. Secondly, and more importantly, you might want to buy it for the quality of its condenser mics. They are absolutely outstanding. I am familiar with a number of recorders such as the Olympus LS10 and Tascam's DR-2d (see my review). The H1's mics simply blow them away. I record acoustic guitar which is notoriously difficult to capture well. The H1 manages it effortlessly with a degree of accuracy and a complete lack of colouration which left me quite astonished. To date these are the best internal mics I have encountered and this alone makes the H1 a must buy. If I lost this recorder I would have no hesitation in buying it again.