I have the Lumea BRI949. Got it for about £250 a few months ago at Boots (all Lumea models were discounted then, and they were doing a 10% off everything on top).
I’ve used it 5 times now and it has been worth it already. I have light olive skin and dark hair. It has worked well on my chin hair and bikini area (hair is dark and thick in both areas).
I found the attachments very useful, particularly the one for the face. They make it easier for the device to get in contact with the area you want to treat. If there is not enough contact (i.e., head too large for the body area you are treating), the light won’t flash. When I forgot to change the attachment from bikini to face, it didn’t work for that reason. But I think most models come with at least 2 attachments.
If your skin is a little bit darker than, say, a MAC NC35 skintone, you may not be able to tolerate the highest setting. My Lumea goes up to 5 in strength, which is fine on my face/overall body (NC20-25 skintone and dark hair, think Sandra Bullock’s colouring), but I can’t go above 3 in my bikini area where the skin is darker (think Salma Hayek skintone). The Lumea itself tests your skintone and shows which strength to go for, and it always suggests a lower strength on areas where my skin is darker. So if your skin is medium toned/not too light, or your hair not too dark, you won’t benefit from higher settings which are only available on the more expensive models.
Another feature of the most expensive Lumea is that it can be used cordless. Personally this wouldn’t make a difference for me, so I went with the model just below in terms of price, and don’t regret it.