the DML 251 ausf D Pionierpanzerwagen 3 in 1 is the first model I chose when I decided to get back into modelling after seeing the kit in Vinnie's article. Those articles are a really good reference to keep going back to.
When I took delivery of my DML box, I was amazed. After being used to Games Workshop stuff, the DML quality is through the roof. It's a lovely kit with lots of extras and options and it makes a great model, with plenty of details to pull the viewers eyes in. Dragon did a great job with the stuff they put in for you to work with, and also with the instructions which were great too. I'd recommend you do a 251 before a tiger.
Sadly, I royally botched the operation when I damaged the SpZb by accident, so I made it into a 251/1 and stashed the pionier extras for another day!!

clever boy that I am.
But hey, take it from me, the 251 can lead to bigger things - I ordered the Tiger late 2 weeks ago !!!