Yankee Tim wrote:I'm assuming the 55w head version would be similar tone?
No, this won't be the case. The little Bugera is a 5 watt class "A" tube amp and the larger, 55 watt one, as are most talked about on this board, is a class "A/B" amp. They operate differently from an electrical standpoint and have very different sound and response characteristics.
easytoslip wrote: ... The person who recommended that I buy it initially, says it's even better if you switch out the tubes for ones of higher quality, but it sounds great to me with the stock tubes ...
Since you are looking for an inexpensive amp at that wattage, you could go with the Bugera V55 and play with tubes, remembering that you can plug and play with preamp tubes but it you change the 6L6 power tubes, the amp's power section will likely need to be re-biased.
I would not expect it to sound like a Fender Twin but you might get kinda in the ballpark with enough juggling of tube types and brands.
So depends on what your goal is.